Description
particular temperature, K = 1.00×102 reaction.
, 1.90 mol of H2 and 1.90 mol of F2 introduced 1.25-L flask and allowed react. equilibrium, all species remain gas phase.
mixture above, additional 9.50×10-1 mol of H2 added What's new K.C (in mol/L)HF
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Melatonin Studypool
Melatonin is a hormone primarily released by the pineal gland at night and has long been associated with control of the sl ...
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DDHA 8500 Walden Wk 5 Career Pathing in Contemporary Health Care Literature Review
This week, you begin development of your Scholar-Practitioner Project: Health Care Administration Leadership Theory. In or ...
DDHA 8500 Walden Wk 5 Career Pathing in Contemporary Health Care Literature Review
This week, you begin development of your Scholar-Practitioner Project: Health Care Administration Leadership Theory. In order to achieve success in this program and as a future leader in health care administration, developing your skills for effectively assessing current literature and evaluating problems is critical. One of the goals of the Scholar-Practitioner Project is to help you develop such skills.For this Project Assignment, think about common trends in health care administration leadership or critical areas of need for leadership in the field. Prepare a literature review of scholarly articles related to your topic. This review should contain a minimum of 10 peer-reviewed or scholarly resources. Additionally, based on your conducted review of the current literature, create a problem statement that addresses identified gaps while incorporating implications for positive social change. Located within the resources for the week, you may find the information from Walden’s Online Writing Center helpful for your completion of the Assignment.For this Project Assignment, think about common trends in health care administration leadership or critical areas of need for leadership in the field.Prepare a literature review of scholarly articles related to your topic in health care administration leadership. This review should contain a minimum of 10 peer-reviewed or scholarly resources.Based on what you find in the current health care administration leadership literature, create a problem statement. It must address identified gaps while incorporating implications for positive social change.Organize the Project in the following manner (each section should be represented for a comprehensive overview):Literature Review and Problem Statement (5–7 pages):The Literature Review section should be written in the narrative form, integrating concepts from the articles you find. The section should include:A synthesis of a minimum of 10 peer-reviewed, scholarly resources that give the reader a good overview of the issue. The section should show the reader common trends in health care administration leadership or critical areas of need for leadership in the field.A description of theoretical gaps in the research area. Based on the research you just did in leadership, what seems to be missing?The Problem Statement should include:An explanation of the specific problem that addresses identified gaps within the literature.An explanation of how your problem statement incorporates implications for positive social change. As students at Walden, you are preparing to become agents of social change. Based on your leadership topic, the research you just did, and the gaps you found, how would you be a social agent for change?
3 pages
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When the dielectric material is withdrawn, the capacitance will decrease by a factor of 5, since it is proportional to the ...
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PUB 560 GCU Religious Values & Traditions Concern for Environmental Health Questions
Question to Answer: (W8 DQ2)What spiritual or religious values and traditions underscore concern for environmental health? ...
PUB 560 GCU Religious Values & Traditions Concern for Environmental Health Questions
Question to Answer: (W8 DQ2)What spiritual or religious values and traditions underscore concern for environmental health? Discuss the role of spiritual or faith-based institutions in environmental stewardship. How have these spiritual or ministerial efforts supported local public health initiatives? What collaborative efforts have been made in environmental health, both locally and globally, with regard to spiritual or faith-based collaboration?PLEASE:- minimum of 250 words or more- strong academic writing / APA style (please use in-text citing and References at end )- must be scholarly articles only no older than 5 years or website that is gov/ org. no blogs - please be original writing ( will check for plagiarism ) and must answer all parts of question for full credit.Can use resources below :Read "The Four Domains Model: Connecting Spirituality, Health and Well-Being," by Fisher, from Religions (2011).URL:http://www.mdpi.com/2077-1444/2/1/17/htmRead "Environmental Spirituality: Grounding Our Response to Climate Change," by Baker and Morrison, from European Journal of Science and Theology (2008).URL:https://www.researchgate.net/publication/252919811_Environmental_Spirituality_Grounding_our_response_to_climate_chaneRead "The Lazy Person's Guide to Saving the World," located on the United Nations website.URL:http://www.un.org/sustainabledevelopment/takeaction/Review the Natural Resources Conservation Service page of the United States Department of Agriculture (USDA) website.URL:https://www.nrcs.usda.gov/wps/portal/nrcs/site/national/home/Review the Environmental Stewardship page of the United States Environmental Protection Agency (EPA) website.URL:https://archive.epa.gov/stewardship/web/html/Review the Environmental Stewardship Resources located on the Corporation for National and Community Service website.URL:https://www.nationalservice.gov/resources/environmental-stewardshipReview the resources on the Sustainability page of the United States Environmental Protection Agency (EPA) website.URL:https://www.epa.gov/sustainability
FLVS Creating a Heating Curve for Hydrogen & Illustration Project
There are two parts to submit for this activity.
Part One: Using the data and observations in the
table below, crea ...
FLVS Creating a Heating Curve for Hydrogen & Illustration Project
There are two parts to submit for this activity.
Part One: Using the data and observations in the
table below, create a heating curve for hydrogen that Dr. Wong can
reference during his laboratory testing.
Part Two: Create a model of the atoms of a substance moving through the solid, liquid, and gas states. PART ONE:Watch the video below on hydrogen gas storage before beginning your activity.Hydrogen Gas Storage Video—Text Version [A woman driving a car through a neighborhood.] Understanding how atoms behave in different phases can help us to
think about ways to create cleaner energy for things like this car I'm
driving. Most cars run on gas, which releases carbon dioxide into the
atmosphere, contributing to climate change. But what if we could run our
cars on something that wasn't bad for the environment?[A man holding a hydrogen fuel cell].Peter Wong, of Tufts University, is thinking about how we can power
our vehicles with hydrogen instead of fossil fuels. Hydrogen is used in
fuel cells, devices that use hydrogen and oxygen to create electricity.[Animation of a hydrogen fuel cell that shows three plates, blue with
a positive, white, and red with a negative. The H two is going into the
blue on the left and the O two is going into the red on the right. An
arrow points left from the center white cell into the blue cell labeled O
H minus. There is a connection between the negative and positive
terminals labeled energy out and water H two O escapes from the top of
the cell.] So what's really nice about fuel cells is that it uses hydrogen,
oxygen from the air, and creates electricity, and the only byproduct is
water, which isn't harmful to our environment.[A car driving into a gas station and a man pumping gas. People working on hydrogen tanks.]So we could make hydrogen fuel cell cars right now; however, the
gatekeeper for the technology to be used is the storage of the hydrogen.
How we produce hydrogen is also an important obstacle in producing
cleaner energy for transportation. But Wong is concentrating on the
challenge of getting as much hydrogen into one storage space as
possible. Hydrogen in the form of a gas is possible, but not
economically practical for powering a car.[Solid, gas, and liquid particles are shown.]The atoms of gas, as compared to those in a solid or liquid, just
take up too much space to have a high enough density for atoms within a
given volume to produce enough energy. Wong's solution is to add solid
material in the form of nanofibers inside a container.[Wong holding a nanofiber and a container. Animation shows the cross
section of a container and thin sheets with a bunch of circle cut outs
are placed into the container.]This material is manufactured into sheets that fit inside. These
sheets add surface area to the interior of the container, which has the
same effect as increasing the volume of the tank, allowing more hydrogen
atoms to fit inside. So the challenge is to get more hydrogen molecules
into this fixed volume without increasing the weight too much. Dr. Wong's assistant made the observations below while
heating a sample of solid hydrogen. Using the data and observations in
the table below, create a heating curve for hydrogen that Dr. Wong can
reference during his laboratory testing. Be sure to include and label
the following items in your heating curve:Create temperature and time intervals that are appropriate for the data.
Don't start the temperature on the graph at 0 °C because the time intervals will be too large for the hydrogen data.
Label the melting and boiling points on the curve.
Label the three states and the two transition phases on the curve.
Heating data:Time (Minutes)
Observations
0:00
Hydrogen is a solid at −263 °C. Heat is added to sample.
2:43
Hydrogen begins to change into a liquid at −259 °C.
6:15
Temperature of the liquid begins to increase.
10:36
Hydrogen begins to form a gas at −253 °C.
14:01
Temperature of the gas begins to increase.
18:00
Final temperature of hydrogen gas is −245 °C.
PART TWO Create a model of the atoms of a substance moving through the
solid, liquid, and gas states. This can be a physical model using
household or crafting items or a colorful diagram, illustration, or
animation. You can be as creative as you want. Be sure to include and
label the following items in your model: the three states of matter
movement and spacing of molecules
loss or gain of kinetic energy and temperature
transfer of heat
breaking or building of intermolecular bonds
Include one paragraph to explain the movement of energy during phase transitions. View this
student example using candy to help spark your own modeling ideas.
Georgia Military College Balanced Chemical Equations Worksheet
Background: Balanced chemical equations provide a vast amount of information and are a shorthand notation that can be unde ...
Georgia Military College Balanced Chemical Equations Worksheet
Background: Balanced chemical equations provide a vast amount of information and are a shorthand notation that can be understood by chemists and other scientists alike. For example, a very quick inspection of the balanced chemical equation below shows that the reactants and products are easy to discern from one other simply by identifying the chemical species on the left or right of the arrow.2H2(g) + O2(g) → 2H2O(l)Figure 1: Reaction of hydrogen gas and oxygen gas to produce liquid water. The reactants are to the left of the arrow and the product to the right.Further, the whole-number coefficients give the relative amounts of the species with respect to one another; this enables chemists to quickly acquire some quantitative information that could be useful in the laboratory. These quantitative relationships or quantitative deductions drawn from the balance chemical equations (and subsequent calculations) can be grouped under a single umbrella term called stoichiometry.In this laboratory, we will be investigating the stoichiometric relationship involving the reaction of sodium chloride (NaCl) and silver nitrate (AgNO3). When combined, these reactions will produce stoichiometric amounts of sodium nitrate (NaNO3) and solid silver chloride (AgCl). Take a moment to formulate and write down a hypothesis about this reaction and its stoichiometry. This chemical reaction can be seen below in the form of the complete and balanced molecular equation. As one can infer from this brief introductory information, a thorough knowledge of the associated chapters reading for this week is critical to performing well; you are encouraged to read these required sections before starting this lab.NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)Figure 2: The balanced molecular equation for the reacting chemical species in this laboratory.There are several objectives of this lab:To enhance your ability to perform stoichiometric calculations.To improve your comprehension of the various types of chemical reactions.Before you start this laboratory assignment, you are encouraged to review Section 4.3 on page 193 in the textbook. Throughout this laboratory assignment, you will be required to perform and thoroughly document your calculations pertaining to the stoichiometry associated with the reaction above. Be sure to record all observations and any relevant notes that you think you will need to include in your laboratory report.Procedure: Preparing the Lab IFrom the course home page, click on the Virtual Lab Tutorial link to watch the overview of using the virtual lab.From the course home page, access the lab environment by clicking on the Virtual Lab link.After the lab environment loads, click ‘File’ then ‘Load an Assignment.’Select the ‘Stoichiometry and Limiting Reagents’ category.Select the ‘Textbook Style Limiting Reagents Problems’ assignment.At this point, you have prepared the laboratory for the first experiment with the require supplies to complete your experiments.If you haven’t already done so, formulate a hypothesis about the stoichiometry of the reaction between NaCl and AgNO3 as you will need to include this in your final report.Select the ‘Solutions’ tab in the stockroom if it is not already selected. Then, select the Erlenmeyer flask containing the ‘1.00 g NaCl’ to move it to the workbench.We will now collect some data about this solution in the ‘Information’ pane. Record the values for the concentration (molarity) for the Na+ and Cl- species in your notes. Before moving to the next step, you will need to calculate the number of grams of each species; record your calculations and resulting answers in your electronic or handwritten notes.Return to the ‘Solutions’ table in the stockroom and obtain the Erlenmeyer flask containing the ‘1.00 g AgNO3.’Add 100 mL of H2O to the flask. Remember, in a real laboratory setting you cannot accurately add small volumes of water from a very large container, so you will need to transfer a small aliquot of water to a beaker or other piece of glassware before transferring the required amount to the flask. (The term ‘aliquot’ is pronounced as “aluhkwaat” and is typically used to describe small samples of a whole in chemical analyses.)Once your transfer is complete, obtain the concentrations of the NO3− and Ag+ ions from the ‘Information’ pane as before. Then, calculate the grams of each species and record it in your notes.At this point, we now have the necessary agents needed to perform the reaction. Add the entire amount of the NaCl solution to the flask containing the AgNO3 solution using the ‘Realistic’ pour feature in the dialog box. You will see the ‘Realistic’ option once you click and drag the flask to the other.qqSelect the flask containing the mixed reagents and open the ‘Information’ pane. Record the data for the NO3−, Ag+, Na+, and Cl− ions as well as the grams of AgCl formed.After you record your data, clear the workbench but do not close the virtual lab!Before completing this lab, you will need to conduct a thorough analysis of your data in order to answer the mandatory questions below. You will need to include your responses to these questions in your written report in the appropriate section(s). You can use the virtual lab to investigate answers to these questions.
The solution labeled ‘Solution 1’ in the Stockroom contains 2.00 g NaCl. How many grams of AgNO3 must be added to the solution to the solution to completely react with NaCl according to the reaction in the background section?The solution labeled ‘Solution 2’ in the Stockroom contains 3.00 g NaCl.If excess NaCl is added to the solution, how many grams of AgCl solid will be formed? Performing the ExperimentData Analysis
NotesThis section should include notes about any observations or data collected during the lab.Report RequirementsThis section contains key information that must be included in your typed report.Define the problem in a manner that is clear and insightful.Identify the strategies and procedures used during the lab.Clear hypothesis statement and other potential solutions that identify any relevant contextual factors (i.e. real-world costs).Clear presentation of data including any tables or other figures that are relevant to understanding your stated conclusions at the end of the report. Include any relevant calculations performed during the lab.Clearly stated results and discussion of possible improvements to the procedure.Conclusive statements arguing in favor of your findings.Note: All reports will be graded using the rubric embedded within the course.Here are some questions to consider as you write your report:Does my problem statement make sense?Have I summarized my strategies/procedures well enough to be replicated by an outsider?Did I have a valid hypothesis at the start of the lab? Have I expressed this in my report?Do my tables and/or graphs make sense?Are my conclusions valid based on my supplied data?Did I thoroughly summarize my laboratory experience in a concise, factual way such that the reader can understand my processes and findings in the conclusion section alone?
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Melatonin Studypool
Melatonin is a hormone primarily released by the pineal gland at night and has long been associated with control of the sl ...
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Melatonin is a hormone primarily released by the pineal gland at night and has long been associated with control of the sleep–wake cycle. As a ...
DDHA 8500 Walden Wk 5 Career Pathing in Contemporary Health Care Literature Review
This week, you begin development of your Scholar-Practitioner Project: Health Care Administration Leadership Theory. In or ...
DDHA 8500 Walden Wk 5 Career Pathing in Contemporary Health Care Literature Review
This week, you begin development of your Scholar-Practitioner Project: Health Care Administration Leadership Theory. In order to achieve success in this program and as a future leader in health care administration, developing your skills for effectively assessing current literature and evaluating problems is critical. One of the goals of the Scholar-Practitioner Project is to help you develop such skills.For this Project Assignment, think about common trends in health care administration leadership or critical areas of need for leadership in the field. Prepare a literature review of scholarly articles related to your topic. This review should contain a minimum of 10 peer-reviewed or scholarly resources. Additionally, based on your conducted review of the current literature, create a problem statement that addresses identified gaps while incorporating implications for positive social change. Located within the resources for the week, you may find the information from Walden’s Online Writing Center helpful for your completion of the Assignment.For this Project Assignment, think about common trends in health care administration leadership or critical areas of need for leadership in the field.Prepare a literature review of scholarly articles related to your topic in health care administration leadership. This review should contain a minimum of 10 peer-reviewed or scholarly resources.Based on what you find in the current health care administration leadership literature, create a problem statement. It must address identified gaps while incorporating implications for positive social change.Organize the Project in the following manner (each section should be represented for a comprehensive overview):Literature Review and Problem Statement (5–7 pages):The Literature Review section should be written in the narrative form, integrating concepts from the articles you find. The section should include:A synthesis of a minimum of 10 peer-reviewed, scholarly resources that give the reader a good overview of the issue. The section should show the reader common trends in health care administration leadership or critical areas of need for leadership in the field.A description of theoretical gaps in the research area. Based on the research you just did in leadership, what seems to be missing?The Problem Statement should include:An explanation of the specific problem that addresses identified gaps within the literature.An explanation of how your problem statement incorporates implications for positive social change. As students at Walden, you are preparing to become agents of social change. Based on your leadership topic, the research you just did, and the gaps you found, how would you be a social agent for change?
3 pages
Capacitance
When the dielectric material is withdrawn, the capacitance will decrease by a factor of 5, since it is proportional to the ...
Capacitance
When the dielectric material is withdrawn, the capacitance will decrease by a factor of 5, since it is proportional to the dielectric constant. Since ...
PUB 560 GCU Religious Values & Traditions Concern for Environmental Health Questions
Question to Answer: (W8 DQ2)What spiritual or religious values and traditions underscore concern for environmental health? ...
PUB 560 GCU Religious Values & Traditions Concern for Environmental Health Questions
Question to Answer: (W8 DQ2)What spiritual or religious values and traditions underscore concern for environmental health? Discuss the role of spiritual or faith-based institutions in environmental stewardship. How have these spiritual or ministerial efforts supported local public health initiatives? What collaborative efforts have been made in environmental health, both locally and globally, with regard to spiritual or faith-based collaboration?PLEASE:- minimum of 250 words or more- strong academic writing / APA style (please use in-text citing and References at end )- must be scholarly articles only no older than 5 years or website that is gov/ org. no blogs - please be original writing ( will check for plagiarism ) and must answer all parts of question for full credit.Can use resources below :Read "The Four Domains Model: Connecting Spirituality, Health and Well-Being," by Fisher, from Religions (2011).URL:http://www.mdpi.com/2077-1444/2/1/17/htmRead "Environmental Spirituality: Grounding Our Response to Climate Change," by Baker and Morrison, from European Journal of Science and Theology (2008).URL:https://www.researchgate.net/publication/252919811_Environmental_Spirituality_Grounding_our_response_to_climate_chaneRead "The Lazy Person's Guide to Saving the World," located on the United Nations website.URL:http://www.un.org/sustainabledevelopment/takeaction/Review the Natural Resources Conservation Service page of the United States Department of Agriculture (USDA) website.URL:https://www.nrcs.usda.gov/wps/portal/nrcs/site/national/home/Review the Environmental Stewardship page of the United States Environmental Protection Agency (EPA) website.URL:https://archive.epa.gov/stewardship/web/html/Review the Environmental Stewardship Resources located on the Corporation for National and Community Service website.URL:https://www.nationalservice.gov/resources/environmental-stewardshipReview the resources on the Sustainability page of the United States Environmental Protection Agency (EPA) website.URL:https://www.epa.gov/sustainability
FLVS Creating a Heating Curve for Hydrogen & Illustration Project
There are two parts to submit for this activity.
Part One: Using the data and observations in the
table below, crea ...
FLVS Creating a Heating Curve for Hydrogen & Illustration Project
There are two parts to submit for this activity.
Part One: Using the data and observations in the
table below, create a heating curve for hydrogen that Dr. Wong can
reference during his laboratory testing.
Part Two: Create a model of the atoms of a substance moving through the solid, liquid, and gas states. PART ONE:Watch the video below on hydrogen gas storage before beginning your activity.Hydrogen Gas Storage Video—Text Version [A woman driving a car through a neighborhood.] Understanding how atoms behave in different phases can help us to
think about ways to create cleaner energy for things like this car I'm
driving. Most cars run on gas, which releases carbon dioxide into the
atmosphere, contributing to climate change. But what if we could run our
cars on something that wasn't bad for the environment?[A man holding a hydrogen fuel cell].Peter Wong, of Tufts University, is thinking about how we can power
our vehicles with hydrogen instead of fossil fuels. Hydrogen is used in
fuel cells, devices that use hydrogen and oxygen to create electricity.[Animation of a hydrogen fuel cell that shows three plates, blue with
a positive, white, and red with a negative. The H two is going into the
blue on the left and the O two is going into the red on the right. An
arrow points left from the center white cell into the blue cell labeled O
H minus. There is a connection between the negative and positive
terminals labeled energy out and water H two O escapes from the top of
the cell.] So what's really nice about fuel cells is that it uses hydrogen,
oxygen from the air, and creates electricity, and the only byproduct is
water, which isn't harmful to our environment.[A car driving into a gas station and a man pumping gas. People working on hydrogen tanks.]So we could make hydrogen fuel cell cars right now; however, the
gatekeeper for the technology to be used is the storage of the hydrogen.
How we produce hydrogen is also an important obstacle in producing
cleaner energy for transportation. But Wong is concentrating on the
challenge of getting as much hydrogen into one storage space as
possible. Hydrogen in the form of a gas is possible, but not
economically practical for powering a car.[Solid, gas, and liquid particles are shown.]The atoms of gas, as compared to those in a solid or liquid, just
take up too much space to have a high enough density for atoms within a
given volume to produce enough energy. Wong's solution is to add solid
material in the form of nanofibers inside a container.[Wong holding a nanofiber and a container. Animation shows the cross
section of a container and thin sheets with a bunch of circle cut outs
are placed into the container.]This material is manufactured into sheets that fit inside. These
sheets add surface area to the interior of the container, which has the
same effect as increasing the volume of the tank, allowing more hydrogen
atoms to fit inside. So the challenge is to get more hydrogen molecules
into this fixed volume without increasing the weight too much. Dr. Wong's assistant made the observations below while
heating a sample of solid hydrogen. Using the data and observations in
the table below, create a heating curve for hydrogen that Dr. Wong can
reference during his laboratory testing. Be sure to include and label
the following items in your heating curve:Create temperature and time intervals that are appropriate for the data.
Don't start the temperature on the graph at 0 °C because the time intervals will be too large for the hydrogen data.
Label the melting and boiling points on the curve.
Label the three states and the two transition phases on the curve.
Heating data:Time (Minutes)
Observations
0:00
Hydrogen is a solid at −263 °C. Heat is added to sample.
2:43
Hydrogen begins to change into a liquid at −259 °C.
6:15
Temperature of the liquid begins to increase.
10:36
Hydrogen begins to form a gas at −253 °C.
14:01
Temperature of the gas begins to increase.
18:00
Final temperature of hydrogen gas is −245 °C.
PART TWO Create a model of the atoms of a substance moving through the
solid, liquid, and gas states. This can be a physical model using
household or crafting items or a colorful diagram, illustration, or
animation. You can be as creative as you want. Be sure to include and
label the following items in your model: the three states of matter
movement and spacing of molecules
loss or gain of kinetic energy and temperature
transfer of heat
breaking or building of intermolecular bonds
Include one paragraph to explain the movement of energy during phase transitions. View this
student example using candy to help spark your own modeling ideas.
Georgia Military College Balanced Chemical Equations Worksheet
Background: Balanced chemical equations provide a vast amount of information and are a shorthand notation that can be unde ...
Georgia Military College Balanced Chemical Equations Worksheet
Background: Balanced chemical equations provide a vast amount of information and are a shorthand notation that can be understood by chemists and other scientists alike. For example, a very quick inspection of the balanced chemical equation below shows that the reactants and products are easy to discern from one other simply by identifying the chemical species on the left or right of the arrow.2H2(g) + O2(g) → 2H2O(l)Figure 1: Reaction of hydrogen gas and oxygen gas to produce liquid water. The reactants are to the left of the arrow and the product to the right.Further, the whole-number coefficients give the relative amounts of the species with respect to one another; this enables chemists to quickly acquire some quantitative information that could be useful in the laboratory. These quantitative relationships or quantitative deductions drawn from the balance chemical equations (and subsequent calculations) can be grouped under a single umbrella term called stoichiometry.In this laboratory, we will be investigating the stoichiometric relationship involving the reaction of sodium chloride (NaCl) and silver nitrate (AgNO3). When combined, these reactions will produce stoichiometric amounts of sodium nitrate (NaNO3) and solid silver chloride (AgCl). Take a moment to formulate and write down a hypothesis about this reaction and its stoichiometry. This chemical reaction can be seen below in the form of the complete and balanced molecular equation. As one can infer from this brief introductory information, a thorough knowledge of the associated chapters reading for this week is critical to performing well; you are encouraged to read these required sections before starting this lab.NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)Figure 2: The balanced molecular equation for the reacting chemical species in this laboratory.There are several objectives of this lab:To enhance your ability to perform stoichiometric calculations.To improve your comprehension of the various types of chemical reactions.Before you start this laboratory assignment, you are encouraged to review Section 4.3 on page 193 in the textbook. Throughout this laboratory assignment, you will be required to perform and thoroughly document your calculations pertaining to the stoichiometry associated with the reaction above. Be sure to record all observations and any relevant notes that you think you will need to include in your laboratory report.Procedure: Preparing the Lab IFrom the course home page, click on the Virtual Lab Tutorial link to watch the overview of using the virtual lab.From the course home page, access the lab environment by clicking on the Virtual Lab link.After the lab environment loads, click ‘File’ then ‘Load an Assignment.’Select the ‘Stoichiometry and Limiting Reagents’ category.Select the ‘Textbook Style Limiting Reagents Problems’ assignment.At this point, you have prepared the laboratory for the first experiment with the require supplies to complete your experiments.If you haven’t already done so, formulate a hypothesis about the stoichiometry of the reaction between NaCl and AgNO3 as you will need to include this in your final report.Select the ‘Solutions’ tab in the stockroom if it is not already selected. Then, select the Erlenmeyer flask containing the ‘1.00 g NaCl’ to move it to the workbench.We will now collect some data about this solution in the ‘Information’ pane. Record the values for the concentration (molarity) for the Na+ and Cl- species in your notes. Before moving to the next step, you will need to calculate the number of grams of each species; record your calculations and resulting answers in your electronic or handwritten notes.Return to the ‘Solutions’ table in the stockroom and obtain the Erlenmeyer flask containing the ‘1.00 g AgNO3.’Add 100 mL of H2O to the flask. Remember, in a real laboratory setting you cannot accurately add small volumes of water from a very large container, so you will need to transfer a small aliquot of water to a beaker or other piece of glassware before transferring the required amount to the flask. (The term ‘aliquot’ is pronounced as “aluhkwaat” and is typically used to describe small samples of a whole in chemical analyses.)Once your transfer is complete, obtain the concentrations of the NO3− and Ag+ ions from the ‘Information’ pane as before. Then, calculate the grams of each species and record it in your notes.At this point, we now have the necessary agents needed to perform the reaction. Add the entire amount of the NaCl solution to the flask containing the AgNO3 solution using the ‘Realistic’ pour feature in the dialog box. You will see the ‘Realistic’ option once you click and drag the flask to the other.qqSelect the flask containing the mixed reagents and open the ‘Information’ pane. Record the data for the NO3−, Ag+, Na+, and Cl− ions as well as the grams of AgCl formed.After you record your data, clear the workbench but do not close the virtual lab!Before completing this lab, you will need to conduct a thorough analysis of your data in order to answer the mandatory questions below. You will need to include your responses to these questions in your written report in the appropriate section(s). You can use the virtual lab to investigate answers to these questions.
The solution labeled ‘Solution 1’ in the Stockroom contains 2.00 g NaCl. How many grams of AgNO3 must be added to the solution to the solution to completely react with NaCl according to the reaction in the background section?The solution labeled ‘Solution 2’ in the Stockroom contains 3.00 g NaCl.If excess NaCl is added to the solution, how many grams of AgCl solid will be formed? Performing the ExperimentData Analysis
NotesThis section should include notes about any observations or data collected during the lab.Report RequirementsThis section contains key information that must be included in your typed report.Define the problem in a manner that is clear and insightful.Identify the strategies and procedures used during the lab.Clear hypothesis statement and other potential solutions that identify any relevant contextual factors (i.e. real-world costs).Clear presentation of data including any tables or other figures that are relevant to understanding your stated conclusions at the end of the report. Include any relevant calculations performed during the lab.Clearly stated results and discussion of possible improvements to the procedure.Conclusive statements arguing in favor of your findings.Note: All reports will be graded using the rubric embedded within the course.Here are some questions to consider as you write your report:Does my problem statement make sense?Have I summarized my strategies/procedures well enough to be replicated by an outsider?Did I have a valid hypothesis at the start of the lab? Have I expressed this in my report?Do my tables and/or graphs make sense?Are my conclusions valid based on my supplied data?Did I thoroughly summarize my laboratory experience in a concise, factual way such that the reader can understand my processes and findings in the conclusion section alone?
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