Description
- You do a lab investigation where you mix 1.5 moles of HCl and 0.85 moles of NaOH together to make a 1.0L solution. What is the molarity and pH of the resulting solution?
(hint: Write the neutralization equation to determine what is left over!)
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BIO201 Public Health and the Environment (Peer review)
Please evaluate and critique the attached. This is a peer review and part of the grade for my final portfolio. The respons ...
BIO201 Public Health and the Environment (Peer review)
Please evaluate and critique the attached. This is a peer review and part of the grade for my final portfolio. The response should be at least 250-300 words. Below
are the instructions for the final portfolio for your response to be
based off of and not to be complated as part of this question.
Module 8: Portfolio Project
Points
300
Submitting
a file upload
Portfolio Project (300 Points)Important! Read FirstChoose one of the following two assignments to complete this week. Do
not do both assignments. Identify your assignment choice in the title
of your submission.Option #1: The Community Action Plan: Written Report and Slide Presentation
Your Portfolio Project for this class is a community action plan designed to alleviate or correct a public health issue in your community. Your community can be your business, school, neighborhood, town or city of residence or birth, or county. For option 1, your community action plan will be a professional
portfolio that includes a written report and a slide presentation. Below is a useful site where you can find an example of the elements of an action plan.http://www.cityofchicago.org/dam/city/depts/cdph/tobacco_alchohol_and_drug_abuse/LGBTCommunityActionPlanHC.pdf
(Links to an external site.)Preliminary Deliverables: These deliverables must be submitted in the assigned week:
Week 2: Written Response and Project Selection (20 points):
Provide a brief one-paragraph response indicating which assignment
option and public health issue you have selected and why. This will help
your instructor to be aware of your plans and support you in the
development of this project. Upload your response as a Word document.
Week 7: Preliminary Written Report and Peer Review Feedback (30 points) Submit
a preliminary (rough) draft of the written portion of your Portfolio
Project as well as proof of peer review. Remember to include the
following sections: introduction, symptoms, diagnosis, cure, prevention,
and summary. Peer review feedback is also included in this assignment.
Create a post that includes your written report as an attachment using
the Portfolio Project Milestone discussion forum for peer review
feedback. Provide feedback to at least one of your classmates. Choose a
classmate with no other feedback first, to ensure that everyone receives
some feedback from their peers. In this preliminary draft submission,
indicate which project you responded to.Final Paper Instructions: The case study, with four sections (Symptoms, Diagnosis, Cure, and
Prevention). Each section should be about a page in length. Your entire
paper must be 4-5 pages in length not counting the title or reference
pages, which must be included. Your paper must follow the CSU-Global Guide to Writing & APA (Links to an external site.).
In the Symptoms section, describe the public health issue that you
have observed in your community. What “symptoms” does it exhibit? Think
about whom it affects, where it affects them, and how (Refer back to
module 5 CT 1).In the Diagnosis section, discuss the causes of the issue, and give
examples of other communities that have suffered the same problem. How
did those communities solve or attempt to address the issue?In the Cure section, discuss possible options for a cure for this
public health issue. How can you get rid of it, or reduce its occurrence
in your community?In the prevention section, discuss possible options for prevention
of the public health issue that you have selected. How can you reduce
the chance of people being impacted by your issue in the future?
You must back up your sections using at least two scholarly
articles. You may use readings other than the textbook to meet this
requirement. The paper should be based on references to scholarly
materials (rather than on introductory textbooks, popular website
writings, or musings, for example) and should support your claims with
evidence.Incorporate into this final plan any classmates’ critiques that you found useful as well as your instructor’s feedback.The key community members or partners that you plan on contacting,
with an explanation why these individuals or organizations make sense as
potential partners. This could include partners from your list of
potential partners created in week 4 Critical Thinking Assignment Option
#1, or your interview of one key partner completed in week 4 Critical
Thinking Option #2. Incorporate them into a discussion of your plan, do
not just list them.A special emphasis on either the demographics of the affected
population or the economic implications, depending on what Critical
Thinking assignment you completed for week 5.A realistic timeline for your plan. Discuss the time needed for
campaigning, education, funding, building, and implementation. Use ideas
created during week 6 Critical Thinking Assignments, either the option
for annotated bibliography or that for the brainstorming draft feedback.The paper shall comply with the requirements defined within the CSU-Global APA guidelines.Refer to the Portfolio Project rubric for grading criteria.Final Instructions for Slide Presentation:The slide presentation describes the problem in your community and your action plan.Your presentation must be 8-10 slides in length not counting the title and reference slides.Your presentation must be supported by at least two scholarly articles.You may use a Web-based slide presentation software such as Prezi,
for example, or you may use PowerPoint. If you use a Web-based tool,
include the URL to your presentation in a Word document and upload with
your presentation.The audience for this presentation will be community members or
organizations you wish to educate about the public health issue and your
proposed plan.The purpose of this slide presentation is to educate the audience
about the issue. Keep in mind that in real life you will have limited
time to convince people of the gravity of the situation and to come on
board with their support, so you want to be persuasive and get to the
key points quickly and effectively.Note: Be sure to submit both your written report and
your slide presentation for this assignment. Both files should be
uploaded in a single submission to the assignment submission page.The paper and preliminary deliverables must be well written and formatted in conformity with the CSU-Global Guide to Writing & APA (Links to an external site.).Review the Sample PowerPoint Presentation (linked at the bottom of the page) in the CSU-Global Library as well.Option #2: The Community Action Plan: Written Report and Handout
Your Portfolio Project for this class is a Community Action Plan designed to alleviate or correct a public health issue in your community. Your community can be your business, school, neighborhood, town or city of residence or birth, or county. For option 2, your Community Action Plan will be a professional portfolio that includes a written report and a handout. Below is a useful site where you can find an example of the elements of an action plan.http://www.cityofchicago.org/dam/city/depts/cdph/tobacco_alchohol_and_drug_abuse/LGBTCommunityActionPlanHC.pdf
(Links to an external site.)Preliminary Deliverables: These deliverables must be submitted in the assigned week:
Week 2: Written Response and Project Selection (20 points):
Provide a brief one-paragraph response indicating which assignment
option and public health issue you have selected and why. This will help
your instructor to be aware of your plans and support you with
development of this project. Upload your response as a Word document.
Week 7: Preliminary Written Report and Peer Review Feedback (30 points) Submit
a preliminary (rough) draft of the written portion of your portfolio
project as well as proof of peer review. Remember to include the
following sections: introduction, symptoms, diagnosis, prevention, cure
and summary. Peer review feedback is also included in this assignment.
Create a post that includes your written report as an attachment using
the Portfolio Project Milestone discussion forum for peer review
feedback. Provide feedback to at least one of your classmates. Choose a
classmate with no other feedback first, to ensure that everyone receives
some feedback from their peers. In this preliminary draft submission,
indicate which project you responded to.Final Paper Instructions: Your case study should have four sections: Symptoms, Diagnosis,
Cure, and Prevention. Each section should be about a page in length.
Your entire paper must be 4-5 pages in length, not counting the title or
reference pages, which must be included. Your paper must follow the CSU-Global Guide to Writing & APA (Links to an external site.)
In the Symptoms section, describe the public health issue that you
have observed in your community. What “symptoms” does it exhibit? Think
about whom it affects, where it affects them, and how (Refer back to
Module 5, CT 1).In the Diagnosis section, discuss the causes of the issue and give
examples of other communities that have suffered the same problem. How
did those communities solve or attempt to address the issue?In the Cure section, discuss possible options for a cure for this
public health issue. How can you eradicate it or reduce its occurrence
in your community?In the Prevention section, discuss possible options for prevention
of the public health issue that you have selected. How can you reduce
the chance of people being impacted by your issue in the future?
You must back up your sections using at least two scholarly
articles. You may use readings other than the textbook to meet this
requirement. The paper should be based on references to scholarly
materials (rather than on introductory textbooks, popular website
writings, or musings, for example) and should support your claims with
evidence.Incorporate into this final plan any classmates’ critiques that you
found useful, as well as your instructor’s feedback. Identify the key
community members or partners that you plan on contacting, with an
explanation why these individuals or organizations make sense as
potential partners. This could include partners from your list of
potential partners created in Week 4 Critical Thinking Assignment Option
#1 or your interview of one key partner completed in Week 4 Critical
Thinking Option #2. Incorporate them into a discussion of your plan; do
not just list them.Your case study should include a special emphasis on either the
demographics of the affected population or the economic implications,
depending on what Critical Thinking assignment you completed for Week 5.You should also include a realistic timeline for your plan. Discuss
the time needed for campaigning, education, funding, building, and
implementation. Use ideas developed through Week 6 Critical Thinking
Assignments, from either the annotated bibliography or the feedback on
your detailed outline.Final Instructions for the Handout:The handout that you will distribute to audience members describes the problem in your community and your action plan.You may design this as an outline of your presentation or as a
brochure, with highlighted key points, to accompany your presentation.The purpose of this handout is twofold: to educate the audience
about the issue and to help them follow along as you speak. Keep in mind
that, in real life, you will have limited time to convince people of
the gravity of the situation and to come on board with their support. As
such, you want to be persuasive and get to the key points quickly and
effectively.Your handout must be supported by at least two scholarly articles.You may use the readings other than the textbook for this course.Note: Be sure to submit both your written report and
your handout for this assignment. Both files should be uploaded in a
single submission to the assignment submission page.The paper and preliminary deliverables must be well written and formatted in conformity with the CSU-Global Guide to Writing & APA (Links to an external site.).
Grossmont College Qualitative Analysis of Group I Cations Questions
Experiment_Qualitative_Analysis_Instructions.pdf
Online Lab Experiment Qualitative Analysis A. General Background to Quali ...
Grossmont College Qualitative Analysis of Group I Cations Questions
Experiment_Qualitative_Analysis_Instructions.pdf
Online Lab Experiment Qualitative Analysis A. General Background to Qualitative Analysis Experiment Qualitative analysis is a method used for identification of ions or compounds in a sample. In many cases, qualitative analysis will also involve the separation of ions or compounds in a mixture. Examples of qualitative tests would include ion precipitation reactions (solubility tests) or chemical reactivity tests. The separation of ions is easily achieved by taking advantage of their solubility properties. The goal of this lab is to use qualitative analysis to identify which cations are present in an “unknown” mixture containing one or more of the cations Ag+ , Hg2 2+ and Pb2+ (known collectively as “Group I Cations”). In a lab simulation, you will use selective precipitation, which takes advantage of the differing solubility of these ions in different conditions, to separate these ions from the mixture and then confirm their presence or absence using selective chemical reactions. In the first part of the experiment you will use a qualitative analysis scheme with known solutions containing one or more of the group I cations to show how the ions behave and can be identified. In the second part, you will perform the same procedure with an assigned “unknown” and identify which of the group I cations is present or absent. B. Specific Background to this Experiment: Separation and Identification of Group I Cations. Download the file “Qualitative Analysis Lab 364” from the assignment. This contains a portion of a paper describing “The Chemistry and Qualitative Analysis of Cations: Group Separations and Separation of Group I Cations” Read the sections titled: “Background Information”,”I, Separating Group I Cations from Group II, III and IV Cations” and “III. Group I Cations (Insoluble Chlorides)” These sections contain a specific background and explanation of the use of selective precipitation and confirmation reactions to separate and identify group I cations (Ag+ , Hg2 2+ and Pb2+) in a mixture of cations. Note that the separation procedure we will use in the online lab simulation is generally similar to that described in this paper. However, the details of the confirmations are different and are described in the online lab simulation documentation (see below). Part C of these instructions contains information on how to use the online lab simulation. Part D of these instructions describes the experiments you should carry out. Part E contains instructions on postlab questions and how to submit your lab assignment. 2 C. Instructions for Online Qualitative Analysis Simulation. 1. Go to the following website: http://web.mst.edu/~gbert/qual/qual.html This site is called “Qualitative Analysis – Cations Group I” and contains an online simulation of a qualitative analysis experiment for group I cations. It was created by Prof. Gary Bertrand of the Department of Chemistry at Missouri University of Science and Technology (https://chem.mst.edu/) and we thank him for our use of this simulation. 2. Toward the top of the page you will see heading for “Discussion”, “Flow Sheets”, “Operation” and “Check Unknown”: a) Click on “Discussion”. A new page will open that contains a description of the experiment procedures and a suggested experiment to use known solutions. It is a good idea to print this page if you can so that you can refer to it at any time. b) Click on “Operation” at any time to see instructions on how the various parts of the virtual lab simulation work. c) Click on “Flow Sheets” to see a representation of the steps in the qualitative analysis scheme used to separate and identify group I cations. d) Click on “Check Unknown” when you are ready to see if you have correctly identified the cations present and absent in your sample. 3. Watch the powerpoint presentation found in the lab assignment. In this I will show you a run through of how the online QA lab simulation works. D. Experiments To Carry Out With Online Qualitative Analysis Simulation. General: Make notes and observations as you perform procedures with the simulation. It is a good idea to note which test tube you put things into or decant from as you can’t label the tubes. Use to clear the simulation between experiments. If you get stuck, close your browser windown and reopen the simulation by going to http://web.mst.edu/~gbert/qual/qual.html Experiment 1 - Analysis of known Group I Cations Separately: For your first experiment you can carry out the “Suggested Experiment” described in the “Discussion” where you will analyze solutions containing Ag+ , Hg2 2+, and Pb2+ individually to see how they behave. Experiment 2 - Analysis of a known mixture of Group I Cations: For your second experiment, create a mixture of Ag+ , Hg2 2+ and Pb2+ by placing one drop of each in a single test tube. To do this select Ag (I) std from the “Samples” and place one drop of it in the first test tube. Repeat this to add one drop of Hg (I) std and Pb (II) std into the same test tube. Once you have this mixture, carry out the procedure described in the flow sheet (see also powerpoint presentation) to separate and confirm the presence of all three ions in this mixture. Make careful notes of what you do and note down what you observe at each step. 3 Experiment 3 - Analysis of a trial unknown: For your third experiment, select the “Trial unknown” from the samples and place 2 – 3 drops of it in the first test tube. This trial unknown contains one or more the group I cations randomly selected by the simulation. Carry out the same procedure that you did before for a mixture of known group I cations (Experiment 2). Make careful notes of what you do and note down what you observe at each step. Use your observations, along with observations you made from experiment 2, to identify whether Ag+ , Hg2 2+ and Pb2+ are present or absent in the trial unknown. When you are ready, click the “Check Unknown” and then use the appropriate buttons to select “Yes” for present and “No” for absent for each ion and then click “Check Answer” to see if you are correct. You can repeat this analysis of a trial unknown as many times as you like to practice. A new sample will be created each time you select a trial unknown. Experiment 4 – Analysis of an assigned unknown: For your fourth experiment, you will analyze an assigned unknown that contains one or more the group I cations. I will assign you a specific assigned unknown (identified by a number from 101 – 999). Instructions for this will be found in the main assignment instructions on Canvas. Make sure that you analyze the assigned unknown that I provide you. TO MAKE SURE THAT THIS EXPERIMENT WORKS CORRECTLY, IT IS IMPORTANT THAT YOU RESTART THE SIMULATION BY CLOSING THE WEBPAGE AND THEN REOPENING IT BEFORE ANALYZING THE ASSIGNED UNKNOWN. Close your webpage, reopen a new page, and go to : http://web.mst.edu/~gbert/qual/qual.html Select “Assigned Unknown” from the samples menu and type the number of your assigned unknown into the dialog box that opens. (To check that the simulation is working correctly, click “Check Unknown” and look to see if a box called “Prepare for print” appears below the options for each ion. If it does you are OK. If it says “Check answer” then it still thinks you have a trial unknown and you need to restart the simulation.). Click “Operation” or “Flow Sheet” to see the appropriate instructions again. Now you are ready to analyze your assigned unknown. Carry out the same procedure that you did for a mixture of known group I cations (Experiment 2). Make careful notes of what you do and note down what you observe at each step. Use your observations, along with observations you made from experiment 2, to identify whether Ag+ , Hg2 2+ and Pb2+ are present or absent in your assigned unknown. When you are ready click “Check Unknown”. Use the appropriate buttons to select “Yes” for present and “No” for absent for each ion. Then click “Prepare for print”. Enter your name in the dialog box that opens and click OK. A new page opens with a summary of your answer. You can print this page from your web-browser. You will need an electronic copy of this summary page for submission of your lab report. Use whatever options you have available on your PC/Mac/other platform to make a digital copy: print it and take a picture, print it and scan the print out, print to a PDF file if you have that capability, take a picture of your screen, take a screenshot…. Name the file containing the summary page of the assigned unknown using the format lastname_initial_QAlab_unknown 4
E. Postlab Questions and Submission of Lab Assignment: When you have completed the experiments in part D, including the assigned unknown, answer the postlab questions below. You can either write your answers using your MS-word editor (or equivalent), in the relevant spaces below OR print this page, write your answers by hand, and take a picture of your answers to submit on Canvas. WRITE YOUR NAME AND LAB SECTION HERE: _________________________
1. What property of group I cations like Ag+ , Hg2 2+ an Pb2+ allows them to be separated from group II and group III cations?
2. Write balanced chemical equations for the following reactions: a) AgCl (s) + NH3 (aq) b) Hg2Cl2 (s) + NH3 (aq)
3. For a solution containing at least one of the three cations involved in this experiment, answer the following questions.
a) When HCl is added to the solution, a white precipitate forms. What cation(s) may be present in the solution?
b) The tube from part a) is centrifuged, decanted and hot water is added to the precipitate. After this is centrifuged, a white solid remains. What cations(s) may be present?
c) When the decanted liquid from part b) is cooled, a white precipitate forms. What cations(s) may be present.
d) When the white solid from part b) is treated with aqueous NH3 until basic, and then centrifuged, there is no precipitate. When the decanted liquid is treated with HCl until acidic and precipitate forms. What conclusions can be made about the presence or absence of the cations in the original solution.
You may research the answers for Q 4 and Q 5 on the internet, in your textbook… 5
4. Sodium sulfide (Na2S) and sodium sulfate (Na2SO4) are both colorless, odorless solutions. Imagine you have a beaker containing a colorless, odorless solution that you know is either sodium sulfide or sodium sulfate. How could you use a chemical reaction to determine which of the compounds is in the beaker? Use chemical equations to explain your answer.
5. Sodium chloride (NaCl) and potassium chloride (KCl) are both colorless, odorless solutions. Imagine you have a beaker containing a colorless, odorless solution that you know contains one of these two solutions. What test(s) could you use to determine which solution is in the beaker.
Lab Assignment Submission: Save your answers to the postlab questions in a document with a filename based on your name e.g. lastname_initial_QAlab_postlabQ. Submit this document, along with the print out from Experiment 4 (see Part D) by uploading into the assignment on Canvas. This must be done by deadline indicated in the assignment on Canvas.
The file "Qualitative_Analysis_Lab-364.pdf" that you will read for background information can be found below:
Qualitative_Analysis_Lab_364.pdf
A link to the online simulation website is present in the instructions file and can also be found here:
http://web.mst.edu/~gbert/qual/qual.html (Links to an external site.)
A powerpoint presentation containing a prelab demonstration of how to use the online simulation can be found below:
Using_Online_QA_Lab_Simulation_Demo.pptx
Carefully follow the instructions that describe how to perform the experiments and how to complete postlab questions.
IMPORTANT: TO FIND YOUR ASSIGNED UNKNOWN NUMBER, LOOK IN THE GRADES SECTION ON CANVAS. FIND AN ASSIGNMENT CALLED "QA Lab Unknown" AND YOU WILL SEE A SCORE REPRESENTING A NUMBER BETWEEN 101 AND 999. THIS THREE DIGIT NUMBER IS YOUR ASSIGNED UNKNOWN NUMBER.
MY UNKNOWN NUMBER IS 321
When you have completed this experiment, you will have two files. One file will your summary identifying an assigned unknown and the other will contain answers to postlab Q. Name these files as directed in the instructions and submit them using the Submit button on this page.
The deadline for this assignment is May 24th at 11:59 pm.
For the first link if it doesn't open i provided the instruction under the link. The lab is not hard vary easy but i dont have time to do it.
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WMD Chemcial Agents short answer
Short Discussion Board question:Name one or two of the chemical weapons agents and discuss how they have been used as WMD ...
WMD Chemcial Agents short answer
Short Discussion Board question:Name one or two of the chemical weapons agents and discuss how they have been used as WMD in
the past during any war. Have terrorists used such weapons in the past? What
international laws exist to counter the construction, distribution, and use of
WMD? Explain.1.Sarin Nerve Agent 2. Hydrogen Cyanide 3. Phosgene Pick two.
BIO201 Public Health and the Environment (Peer review)
Please evaluate and critique the attached. This is a peer review and part of the grade for my final portfolio. The respons ...
BIO201 Public Health and the Environment (Peer review)
Please evaluate and critique the attached. This is a peer review and part of the grade for my final portfolio. The response should be at least 250-300 words. Below
are the instructions for the final portfolio for your response to be
based off of and not to be complated as part of this question.
Module 8: Portfolio Project
Points
300
Submitting
a file upload
Portfolio Project (300 Points)Important! Read FirstChoose one of the following two assignments to complete this week. Do
not do both assignments. Identify your assignment choice in the title
of your submission.Option #1: The Community Action Plan: Written Report and Slide Presentation
Your Portfolio Project for this class is a community action plan designed to alleviate or correct a public health issue in your community. Your community can be your business, school, neighborhood, town or city of residence or birth, or county. For option 1, your community action plan will be a professional
portfolio that includes a written report and a slide presentation. Below is a useful site where you can find an example of the elements of an action plan.http://www.cityofchicago.org/dam/city/depts/cdph/tobacco_alchohol_and_drug_abuse/LGBTCommunityActionPlanHC.pdf
(Links to an external site.)Preliminary Deliverables: These deliverables must be submitted in the assigned week:
Week 2: Written Response and Project Selection (20 points):
Provide a brief one-paragraph response indicating which assignment
option and public health issue you have selected and why. This will help
your instructor to be aware of your plans and support you in the
development of this project. Upload your response as a Word document.
Week 7: Preliminary Written Report and Peer Review Feedback (30 points) Submit
a preliminary (rough) draft of the written portion of your Portfolio
Project as well as proof of peer review. Remember to include the
following sections: introduction, symptoms, diagnosis, cure, prevention,
and summary. Peer review feedback is also included in this assignment.
Create a post that includes your written report as an attachment using
the Portfolio Project Milestone discussion forum for peer review
feedback. Provide feedback to at least one of your classmates. Choose a
classmate with no other feedback first, to ensure that everyone receives
some feedback from their peers. In this preliminary draft submission,
indicate which project you responded to.Final Paper Instructions: The case study, with four sections (Symptoms, Diagnosis, Cure, and
Prevention). Each section should be about a page in length. Your entire
paper must be 4-5 pages in length not counting the title or reference
pages, which must be included. Your paper must follow the CSU-Global Guide to Writing & APA (Links to an external site.).
In the Symptoms section, describe the public health issue that you
have observed in your community. What “symptoms” does it exhibit? Think
about whom it affects, where it affects them, and how (Refer back to
module 5 CT 1).In the Diagnosis section, discuss the causes of the issue, and give
examples of other communities that have suffered the same problem. How
did those communities solve or attempt to address the issue?In the Cure section, discuss possible options for a cure for this
public health issue. How can you get rid of it, or reduce its occurrence
in your community?In the prevention section, discuss possible options for prevention
of the public health issue that you have selected. How can you reduce
the chance of people being impacted by your issue in the future?
You must back up your sections using at least two scholarly
articles. You may use readings other than the textbook to meet this
requirement. The paper should be based on references to scholarly
materials (rather than on introductory textbooks, popular website
writings, or musings, for example) and should support your claims with
evidence.Incorporate into this final plan any classmates’ critiques that you found useful as well as your instructor’s feedback.The key community members or partners that you plan on contacting,
with an explanation why these individuals or organizations make sense as
potential partners. This could include partners from your list of
potential partners created in week 4 Critical Thinking Assignment Option
#1, or your interview of one key partner completed in week 4 Critical
Thinking Option #2. Incorporate them into a discussion of your plan, do
not just list them.A special emphasis on either the demographics of the affected
population or the economic implications, depending on what Critical
Thinking assignment you completed for week 5.A realistic timeline for your plan. Discuss the time needed for
campaigning, education, funding, building, and implementation. Use ideas
created during week 6 Critical Thinking Assignments, either the option
for annotated bibliography or that for the brainstorming draft feedback.The paper shall comply with the requirements defined within the CSU-Global APA guidelines.Refer to the Portfolio Project rubric for grading criteria.Final Instructions for Slide Presentation:The slide presentation describes the problem in your community and your action plan.Your presentation must be 8-10 slides in length not counting the title and reference slides.Your presentation must be supported by at least two scholarly articles.You may use a Web-based slide presentation software such as Prezi,
for example, or you may use PowerPoint. If you use a Web-based tool,
include the URL to your presentation in a Word document and upload with
your presentation.The audience for this presentation will be community members or
organizations you wish to educate about the public health issue and your
proposed plan.The purpose of this slide presentation is to educate the audience
about the issue. Keep in mind that in real life you will have limited
time to convince people of the gravity of the situation and to come on
board with their support, so you want to be persuasive and get to the
key points quickly and effectively.Note: Be sure to submit both your written report and
your slide presentation for this assignment. Both files should be
uploaded in a single submission to the assignment submission page.The paper and preliminary deliverables must be well written and formatted in conformity with the CSU-Global Guide to Writing & APA (Links to an external site.).Review the Sample PowerPoint Presentation (linked at the bottom of the page) in the CSU-Global Library as well.Option #2: The Community Action Plan: Written Report and Handout
Your Portfolio Project for this class is a Community Action Plan designed to alleviate or correct a public health issue in your community. Your community can be your business, school, neighborhood, town or city of residence or birth, or county. For option 2, your Community Action Plan will be a professional portfolio that includes a written report and a handout. Below is a useful site where you can find an example of the elements of an action plan.http://www.cityofchicago.org/dam/city/depts/cdph/tobacco_alchohol_and_drug_abuse/LGBTCommunityActionPlanHC.pdf
(Links to an external site.)Preliminary Deliverables: These deliverables must be submitted in the assigned week:
Week 2: Written Response and Project Selection (20 points):
Provide a brief one-paragraph response indicating which assignment
option and public health issue you have selected and why. This will help
your instructor to be aware of your plans and support you with
development of this project. Upload your response as a Word document.
Week 7: Preliminary Written Report and Peer Review Feedback (30 points) Submit
a preliminary (rough) draft of the written portion of your portfolio
project as well as proof of peer review. Remember to include the
following sections: introduction, symptoms, diagnosis, prevention, cure
and summary. Peer review feedback is also included in this assignment.
Create a post that includes your written report as an attachment using
the Portfolio Project Milestone discussion forum for peer review
feedback. Provide feedback to at least one of your classmates. Choose a
classmate with no other feedback first, to ensure that everyone receives
some feedback from their peers. In this preliminary draft submission,
indicate which project you responded to.Final Paper Instructions: Your case study should have four sections: Symptoms, Diagnosis,
Cure, and Prevention. Each section should be about a page in length.
Your entire paper must be 4-5 pages in length, not counting the title or
reference pages, which must be included. Your paper must follow the CSU-Global Guide to Writing & APA (Links to an external site.)
In the Symptoms section, describe the public health issue that you
have observed in your community. What “symptoms” does it exhibit? Think
about whom it affects, where it affects them, and how (Refer back to
Module 5, CT 1).In the Diagnosis section, discuss the causes of the issue and give
examples of other communities that have suffered the same problem. How
did those communities solve or attempt to address the issue?In the Cure section, discuss possible options for a cure for this
public health issue. How can you eradicate it or reduce its occurrence
in your community?In the Prevention section, discuss possible options for prevention
of the public health issue that you have selected. How can you reduce
the chance of people being impacted by your issue in the future?
You must back up your sections using at least two scholarly
articles. You may use readings other than the textbook to meet this
requirement. The paper should be based on references to scholarly
materials (rather than on introductory textbooks, popular website
writings, or musings, for example) and should support your claims with
evidence.Incorporate into this final plan any classmates’ critiques that you
found useful, as well as your instructor’s feedback. Identify the key
community members or partners that you plan on contacting, with an
explanation why these individuals or organizations make sense as
potential partners. This could include partners from your list of
potential partners created in Week 4 Critical Thinking Assignment Option
#1 or your interview of one key partner completed in Week 4 Critical
Thinking Option #2. Incorporate them into a discussion of your plan; do
not just list them.Your case study should include a special emphasis on either the
demographics of the affected population or the economic implications,
depending on what Critical Thinking assignment you completed for Week 5.You should also include a realistic timeline for your plan. Discuss
the time needed for campaigning, education, funding, building, and
implementation. Use ideas developed through Week 6 Critical Thinking
Assignments, from either the annotated bibliography or the feedback on
your detailed outline.Final Instructions for the Handout:The handout that you will distribute to audience members describes the problem in your community and your action plan.You may design this as an outline of your presentation or as a
brochure, with highlighted key points, to accompany your presentation.The purpose of this handout is twofold: to educate the audience
about the issue and to help them follow along as you speak. Keep in mind
that, in real life, you will have limited time to convince people of
the gravity of the situation and to come on board with their support. As
such, you want to be persuasive and get to the key points quickly and
effectively.Your handout must be supported by at least two scholarly articles.You may use the readings other than the textbook for this course.Note: Be sure to submit both your written report and
your handout for this assignment. Both files should be uploaded in a
single submission to the assignment submission page.The paper and preliminary deliverables must be well written and formatted in conformity with the CSU-Global Guide to Writing & APA (Links to an external site.).
Grossmont College Qualitative Analysis of Group I Cations Questions
Experiment_Qualitative_Analysis_Instructions.pdf
Online Lab Experiment Qualitative Analysis A. General Background to Quali ...
Grossmont College Qualitative Analysis of Group I Cations Questions
Experiment_Qualitative_Analysis_Instructions.pdf
Online Lab Experiment Qualitative Analysis A. General Background to Qualitative Analysis Experiment Qualitative analysis is a method used for identification of ions or compounds in a sample. In many cases, qualitative analysis will also involve the separation of ions or compounds in a mixture. Examples of qualitative tests would include ion precipitation reactions (solubility tests) or chemical reactivity tests. The separation of ions is easily achieved by taking advantage of their solubility properties. The goal of this lab is to use qualitative analysis to identify which cations are present in an “unknown” mixture containing one or more of the cations Ag+ , Hg2 2+ and Pb2+ (known collectively as “Group I Cations”). In a lab simulation, you will use selective precipitation, which takes advantage of the differing solubility of these ions in different conditions, to separate these ions from the mixture and then confirm their presence or absence using selective chemical reactions. In the first part of the experiment you will use a qualitative analysis scheme with known solutions containing one or more of the group I cations to show how the ions behave and can be identified. In the second part, you will perform the same procedure with an assigned “unknown” and identify which of the group I cations is present or absent. B. Specific Background to this Experiment: Separation and Identification of Group I Cations. Download the file “Qualitative Analysis Lab 364” from the assignment. This contains a portion of a paper describing “The Chemistry and Qualitative Analysis of Cations: Group Separations and Separation of Group I Cations” Read the sections titled: “Background Information”,”I, Separating Group I Cations from Group II, III and IV Cations” and “III. Group I Cations (Insoluble Chlorides)” These sections contain a specific background and explanation of the use of selective precipitation and confirmation reactions to separate and identify group I cations (Ag+ , Hg2 2+ and Pb2+) in a mixture of cations. Note that the separation procedure we will use in the online lab simulation is generally similar to that described in this paper. However, the details of the confirmations are different and are described in the online lab simulation documentation (see below). Part C of these instructions contains information on how to use the online lab simulation. Part D of these instructions describes the experiments you should carry out. Part E contains instructions on postlab questions and how to submit your lab assignment. 2 C. Instructions for Online Qualitative Analysis Simulation. 1. Go to the following website: http://web.mst.edu/~gbert/qual/qual.html This site is called “Qualitative Analysis – Cations Group I” and contains an online simulation of a qualitative analysis experiment for group I cations. It was created by Prof. Gary Bertrand of the Department of Chemistry at Missouri University of Science and Technology (https://chem.mst.edu/) and we thank him for our use of this simulation. 2. Toward the top of the page you will see heading for “Discussion”, “Flow Sheets”, “Operation” and “Check Unknown”: a) Click on “Discussion”. A new page will open that contains a description of the experiment procedures and a suggested experiment to use known solutions. It is a good idea to print this page if you can so that you can refer to it at any time. b) Click on “Operation” at any time to see instructions on how the various parts of the virtual lab simulation work. c) Click on “Flow Sheets” to see a representation of the steps in the qualitative analysis scheme used to separate and identify group I cations. d) Click on “Check Unknown” when you are ready to see if you have correctly identified the cations present and absent in your sample. 3. Watch the powerpoint presentation found in the lab assignment. In this I will show you a run through of how the online QA lab simulation works. D. Experiments To Carry Out With Online Qualitative Analysis Simulation. General: Make notes and observations as you perform procedures with the simulation. It is a good idea to note which test tube you put things into or decant from as you can’t label the tubes. Use to clear the simulation between experiments. If you get stuck, close your browser windown and reopen the simulation by going to http://web.mst.edu/~gbert/qual/qual.html Experiment 1 - Analysis of known Group I Cations Separately: For your first experiment you can carry out the “Suggested Experiment” described in the “Discussion” where you will analyze solutions containing Ag+ , Hg2 2+, and Pb2+ individually to see how they behave. Experiment 2 - Analysis of a known mixture of Group I Cations: For your second experiment, create a mixture of Ag+ , Hg2 2+ and Pb2+ by placing one drop of each in a single test tube. To do this select Ag (I) std from the “Samples” and place one drop of it in the first test tube. Repeat this to add one drop of Hg (I) std and Pb (II) std into the same test tube. Once you have this mixture, carry out the procedure described in the flow sheet (see also powerpoint presentation) to separate and confirm the presence of all three ions in this mixture. Make careful notes of what you do and note down what you observe at each step. 3 Experiment 3 - Analysis of a trial unknown: For your third experiment, select the “Trial unknown” from the samples and place 2 – 3 drops of it in the first test tube. This trial unknown contains one or more the group I cations randomly selected by the simulation. Carry out the same procedure that you did before for a mixture of known group I cations (Experiment 2). Make careful notes of what you do and note down what you observe at each step. Use your observations, along with observations you made from experiment 2, to identify whether Ag+ , Hg2 2+ and Pb2+ are present or absent in the trial unknown. When you are ready, click the “Check Unknown” and then use the appropriate buttons to select “Yes” for present and “No” for absent for each ion and then click “Check Answer” to see if you are correct. You can repeat this analysis of a trial unknown as many times as you like to practice. A new sample will be created each time you select a trial unknown. Experiment 4 – Analysis of an assigned unknown: For your fourth experiment, you will analyze an assigned unknown that contains one or more the group I cations. I will assign you a specific assigned unknown (identified by a number from 101 – 999). Instructions for this will be found in the main assignment instructions on Canvas. Make sure that you analyze the assigned unknown that I provide you. TO MAKE SURE THAT THIS EXPERIMENT WORKS CORRECTLY, IT IS IMPORTANT THAT YOU RESTART THE SIMULATION BY CLOSING THE WEBPAGE AND THEN REOPENING IT BEFORE ANALYZING THE ASSIGNED UNKNOWN. Close your webpage, reopen a new page, and go to : http://web.mst.edu/~gbert/qual/qual.html Select “Assigned Unknown” from the samples menu and type the number of your assigned unknown into the dialog box that opens. (To check that the simulation is working correctly, click “Check Unknown” and look to see if a box called “Prepare for print” appears below the options for each ion. If it does you are OK. If it says “Check answer” then it still thinks you have a trial unknown and you need to restart the simulation.). Click “Operation” or “Flow Sheet” to see the appropriate instructions again. Now you are ready to analyze your assigned unknown. Carry out the same procedure that you did for a mixture of known group I cations (Experiment 2). Make careful notes of what you do and note down what you observe at each step. Use your observations, along with observations you made from experiment 2, to identify whether Ag+ , Hg2 2+ and Pb2+ are present or absent in your assigned unknown. When you are ready click “Check Unknown”. Use the appropriate buttons to select “Yes” for present and “No” for absent for each ion. Then click “Prepare for print”. Enter your name in the dialog box that opens and click OK. A new page opens with a summary of your answer. You can print this page from your web-browser. You will need an electronic copy of this summary page for submission of your lab report. Use whatever options you have available on your PC/Mac/other platform to make a digital copy: print it and take a picture, print it and scan the print out, print to a PDF file if you have that capability, take a picture of your screen, take a screenshot…. Name the file containing the summary page of the assigned unknown using the format lastname_initial_QAlab_unknown 4
E. Postlab Questions and Submission of Lab Assignment: When you have completed the experiments in part D, including the assigned unknown, answer the postlab questions below. You can either write your answers using your MS-word editor (or equivalent), in the relevant spaces below OR print this page, write your answers by hand, and take a picture of your answers to submit on Canvas. WRITE YOUR NAME AND LAB SECTION HERE: _________________________
1. What property of group I cations like Ag+ , Hg2 2+ an Pb2+ allows them to be separated from group II and group III cations?
2. Write balanced chemical equations for the following reactions: a) AgCl (s) + NH3 (aq) b) Hg2Cl2 (s) + NH3 (aq)
3. For a solution containing at least one of the three cations involved in this experiment, answer the following questions.
a) When HCl is added to the solution, a white precipitate forms. What cation(s) may be present in the solution?
b) The tube from part a) is centrifuged, decanted and hot water is added to the precipitate. After this is centrifuged, a white solid remains. What cations(s) may be present?
c) When the decanted liquid from part b) is cooled, a white precipitate forms. What cations(s) may be present.
d) When the white solid from part b) is treated with aqueous NH3 until basic, and then centrifuged, there is no precipitate. When the decanted liquid is treated with HCl until acidic and precipitate forms. What conclusions can be made about the presence or absence of the cations in the original solution.
You may research the answers for Q 4 and Q 5 on the internet, in your textbook… 5
4. Sodium sulfide (Na2S) and sodium sulfate (Na2SO4) are both colorless, odorless solutions. Imagine you have a beaker containing a colorless, odorless solution that you know is either sodium sulfide or sodium sulfate. How could you use a chemical reaction to determine which of the compounds is in the beaker? Use chemical equations to explain your answer.
5. Sodium chloride (NaCl) and potassium chloride (KCl) are both colorless, odorless solutions. Imagine you have a beaker containing a colorless, odorless solution that you know contains one of these two solutions. What test(s) could you use to determine which solution is in the beaker.
Lab Assignment Submission: Save your answers to the postlab questions in a document with a filename based on your name e.g. lastname_initial_QAlab_postlabQ. Submit this document, along with the print out from Experiment 4 (see Part D) by uploading into the assignment on Canvas. This must be done by deadline indicated in the assignment on Canvas.
The file "Qualitative_Analysis_Lab-364.pdf" that you will read for background information can be found below:
Qualitative_Analysis_Lab_364.pdf
A link to the online simulation website is present in the instructions file and can also be found here:
http://web.mst.edu/~gbert/qual/qual.html (Links to an external site.)
A powerpoint presentation containing a prelab demonstration of how to use the online simulation can be found below:
Using_Online_QA_Lab_Simulation_Demo.pptx
Carefully follow the instructions that describe how to perform the experiments and how to complete postlab questions.
IMPORTANT: TO FIND YOUR ASSIGNED UNKNOWN NUMBER, LOOK IN THE GRADES SECTION ON CANVAS. FIND AN ASSIGNMENT CALLED "QA Lab Unknown" AND YOU WILL SEE A SCORE REPRESENTING A NUMBER BETWEEN 101 AND 999. THIS THREE DIGIT NUMBER IS YOUR ASSIGNED UNKNOWN NUMBER.
MY UNKNOWN NUMBER IS 321
When you have completed this experiment, you will have two files. One file will your summary identifying an assigned unknown and the other will contain answers to postlab Q. Name these files as directed in the instructions and submit them using the Submit button on this page.
The deadline for this assignment is May 24th at 11:59 pm.
For the first link if it doesn't open i provided the instruction under the link. The lab is not hard vary easy but i dont have time to do it.
CHEM 151 Canyons Week 13 Neutralization by Acid Base Titration Lab Report
There is no textbook required for this lab, however there is a stimulation that needs to be completed which is given in th ...
CHEM 151 Canyons Week 13 Neutralization by Acid Base Titration Lab Report
There is no textbook required for this lab, however there is a stimulation that needs to be completed which is given in the pictures provided down below in the directions/intro of all of the pages. There is no specific way I need this written out as long as it is completed visibly.
California State University Stoichiometric Calcaulations Chemistry Lab Report
This week’s lab reinforced your understanding of Avogadro’s number and gave you the opportunity to apply the tec ...
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This week’s lab reinforced your understanding of Avogadro’s number and gave you the opportunity to apply the technique of gravimetric analysis. You followed detailed instructions to perform calculations and make conversions to ultimately identify an unknown compound.
here is Quizlet with questions asked in the lab. please answer all questions on the attached lab report with the work on the report
https://quizlet.com/543719677/lab-final-week-3-fla...
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