Temperature of earth's atmosphere
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Describe how the temperature changes as you travel up through the earth's atmosphere.
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bology and math for clinical calculation
can you google those question and answer for me. the answers are online just need to put in your own words. if you google ...
bology and math for clinical calculation
can you google those question and answer for me. the answers are online just need to put in your own words. if you google and did not see it I will send a link of the answers. DO NOT START MY WORK LATE AND EXPECT ME TO GIVE MORE TIME. I NEED NO LATER THAN THE TIME GIVEN. IF U CANT WORK WITH ME DONT BID OR TAKE MY WORK
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Question to Answer?What are two causes of indoor air pollutants? Evaluate the correlation between health and indoor air pollutants. Why is outdoor air quality regulated more effectively than indoor air quality?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 with gov/org and reference and in-text cite.- please be original writing and must answer all parts of question for full credit.study materials:Read "Population and Environment," by Sherbinin, Carr, Cassels, and Jiang, from Annual Review of Environment and Resources (2007).URL:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2792934/Explore the Indoor Environmental Quality page of the Centers for Disease Control and Prevention (CDC) website.URL:https://www.cdc.gov/niosh/topics/indoorenv/Read "Links Between Humans and Ecosystems: The Implications of Framing for Health Promotion Strategies," by Cole, Eyles, Gibson, and Ross, from Health Promotion International (1999).URL:https://academic.oup.com/heapro/article/14/1/65/624139/Links-between-humans-and-ecosystems-theRead "Human Health Impacts of Ecosystem Alteration," by Meyers et al. (2013), located on the Proceedings of the National Academy of Sciences of the United States of America (PNAS) website.URL:http://www.pnas.org/content/110/47/18753.full.pdfExplore the Healthy Homes page of the Centers for Disease Control and Prevention (CDC) website.URL:https://www.cdc.gov/healthyhomes/bytopic/airquality.html
pH Scale by the Method of Successive Dilutions Paper
http://chemcollective.org/vlab/100
Objective:
It is fairly common knowledge that neutral water has a pH of 7, acids have ...
pH Scale by the Method of Successive Dilutions Paper
http://chemcollective.org/vlab/100
Objective:
It is fairly common knowledge that neutral water has a pH of 7, acids have a pH <7 and bases have a pH>7, but few people understand this in terms of the actual hydronium ion concentration. Our objective is to develop an understanding of logarithmic scales by developing a pH scale
Background:
The pH scale describes the hydronium ion concentration in aqueous systems
pH = -log[H3O+]
[H3O+] = 10-pH = 1/10pH
The Method of Successive Dilutions is an experimental technique for preparing a series of solutions of different concentrations from one volume of stock solution.
Lets look at a series of half dilutions.
With the virtual lab fill 5 flasks with a constant amount of water (less than half the volume of the flask), for simplicity, we will use 20 ml, but any amount will do.
*Virtual Lab Tip* - Right Click on each flask and label it
Now add the same amount of stock 1M HCl to the first flask (20 mL), and note that the concentration has been diluted in half, [H3O+] = 0.500M or 1/2 (1/21) the original molarity.
From this flask transfer 20 mL to the second flask and note the it has been diluted in half again,[H3O+]= 0.250M or is one fourth (1/22) the concentration of the original stock solution. ( one screenshot here)
Repeating this procedure with the remaining 3 flasks gives:
3rd dilution: [H3O+] = 0.12500 or 1/8 (1/23) the original stock molarity (one screenshot here)
4th dilution: [H3O+] = 0.06250 or 1/16 (1/24) the original stock molarity (one screenshot here)
5th dilution: [H3O+] = 0.03125 or 1/32 (1/25) the original stock solution. (one screenshot here)
Lets look at this in more detail:
[H3O+] = 2-n = 1/2n
Where n is the number of successive dilutions and by using a dilution factor of one to two, you have come up with a log base 2 scale.
Question: Would changing the volume of the original stock solution and the incremental dilution volumes to a new constant value effect the successive concentrations. Say by starting with 10 mL and transferring 10 mL increments? If you say yes, repeat the above with 10 mL increments and explain. ANSWER THIS QUESTION IN COMPLETE SENTENCES. NO PLAGIARISM. IF YOU DO ANY EXPERIMENTS FOR THIS QUESTION, PLEASE SCREENSHOT THE RESULTS.
PY 121 Passaic County Calculate the Power Needed to Operate Light Bulb Lab Report
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Temple University Temperature Calculation of the Hydrochloric Acid Lab Report
List the starting materials, solvent, reagent, temperature range (low, room temperature, or
high) and products ...
Temple University Temperature Calculation of the Hydrochloric Acid Lab Report
List the starting materials, solvent, reagent, temperature range (low, room temperature, or
high) and products formed:
How long did it take to finish the reaction?
List any important IR peaks (If no noteworthy peaks, answer “none”).
Are there any IR peaks NOT PRESENT that indicate the product was formed? (Hint:
think about the functional groups of the starting material and the product)
List the 1H NMR peaks. List the peak number, chemical shift, multiplicity (splitting
pattern), and the integration.
List the 13C NMR peaks. List the peak number and the chemical shift.
What is the intermediate of this reaction?
What is the leaving group (Hint: think about the mechanism)?
What is the nucleophile? 2-methyl2-propanol +HCl =2-chloro2-methylpropane
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Most Popular Content
bology and math for clinical calculation
can you google those question and answer for me. the answers are online just need to put in your own words. if you google ...
bology and math for clinical calculation
can you google those question and answer for me. the answers are online just need to put in your own words. if you google and did not see it I will send a link of the answers. DO NOT START MY WORK LATE AND EXPECT ME TO GIVE MORE TIME. I NEED NO LATER THAN THE TIME GIVEN. IF U CANT WORK WITH ME DONT BID OR TAKE MY WORK
PUB 560 GCU What Are Two Causes of Indoor Air Pollutants Research Paper
Question to Answer?What are two causes of indoor air pollutants? Evaluate the correlation between health and indoor air po ...
PUB 560 GCU What Are Two Causes of Indoor Air Pollutants Research Paper
Question to Answer?What are two causes of indoor air pollutants? Evaluate the correlation between health and indoor air pollutants. Why is outdoor air quality regulated more effectively than indoor air quality?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 with gov/org and reference and in-text cite.- please be original writing and must answer all parts of question for full credit.study materials:Read "Population and Environment," by Sherbinin, Carr, Cassels, and Jiang, from Annual Review of Environment and Resources (2007).URL:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2792934/Explore the Indoor Environmental Quality page of the Centers for Disease Control and Prevention (CDC) website.URL:https://www.cdc.gov/niosh/topics/indoorenv/Read "Links Between Humans and Ecosystems: The Implications of Framing for Health Promotion Strategies," by Cole, Eyles, Gibson, and Ross, from Health Promotion International (1999).URL:https://academic.oup.com/heapro/article/14/1/65/624139/Links-between-humans-and-ecosystems-theRead "Human Health Impacts of Ecosystem Alteration," by Meyers et al. (2013), located on the Proceedings of the National Academy of Sciences of the United States of America (PNAS) website.URL:http://www.pnas.org/content/110/47/18753.full.pdfExplore the Healthy Homes page of the Centers for Disease Control and Prevention (CDC) website.URL:https://www.cdc.gov/healthyhomes/bytopic/airquality.html
pH Scale by the Method of Successive Dilutions Paper
http://chemcollective.org/vlab/100
Objective:
It is fairly common knowledge that neutral water has a pH of 7, acids have ...
pH Scale by the Method of Successive Dilutions Paper
http://chemcollective.org/vlab/100
Objective:
It is fairly common knowledge that neutral water has a pH of 7, acids have a pH <7 and bases have a pH>7, but few people understand this in terms of the actual hydronium ion concentration. Our objective is to develop an understanding of logarithmic scales by developing a pH scale
Background:
The pH scale describes the hydronium ion concentration in aqueous systems
pH = -log[H3O+]
[H3O+] = 10-pH = 1/10pH
The Method of Successive Dilutions is an experimental technique for preparing a series of solutions of different concentrations from one volume of stock solution.
Lets look at a series of half dilutions.
With the virtual lab fill 5 flasks with a constant amount of water (less than half the volume of the flask), for simplicity, we will use 20 ml, but any amount will do.
*Virtual Lab Tip* - Right Click on each flask and label it
Now add the same amount of stock 1M HCl to the first flask (20 mL), and note that the concentration has been diluted in half, [H3O+] = 0.500M or 1/2 (1/21) the original molarity.
From this flask transfer 20 mL to the second flask and note the it has been diluted in half again,[H3O+]= 0.250M or is one fourth (1/22) the concentration of the original stock solution. ( one screenshot here)
Repeating this procedure with the remaining 3 flasks gives:
3rd dilution: [H3O+] = 0.12500 or 1/8 (1/23) the original stock molarity (one screenshot here)
4th dilution: [H3O+] = 0.06250 or 1/16 (1/24) the original stock molarity (one screenshot here)
5th dilution: [H3O+] = 0.03125 or 1/32 (1/25) the original stock solution. (one screenshot here)
Lets look at this in more detail:
[H3O+] = 2-n = 1/2n
Where n is the number of successive dilutions and by using a dilution factor of one to two, you have come up with a log base 2 scale.
Question: Would changing the volume of the original stock solution and the incremental dilution volumes to a new constant value effect the successive concentrations. Say by starting with 10 mL and transferring 10 mL increments? If you say yes, repeat the above with 10 mL increments and explain. ANSWER THIS QUESTION IN COMPLETE SENTENCES. NO PLAGIARISM. IF YOU DO ANY EXPERIMENTS FOR THIS QUESTION, PLEASE SCREENSHOT THE RESULTS.
PY 121 Passaic County Calculate the Power Needed to Operate Light Bulb Lab Report
please help with physics lab final thank you covers labs 1-9 thank you please do it carefully and thoroughly
PY 121 Passaic County Calculate the Power Needed to Operate Light Bulb Lab Report
please help with physics lab final thank you covers labs 1-9 thank you please do it carefully and thoroughly
Do a Chemistry Multiple Choice Exam
Can you help me to finish a chemistry exam? All of them is multiple choice questions. I need the correct answer to all the ...
Do a Chemistry Multiple Choice Exam
Can you help me to finish a chemistry exam? All of them is multiple choice questions. I need the correct answer to all the questions. Thank you!!!!!!
Temple University Temperature Calculation of the Hydrochloric Acid Lab Report
List the starting materials, solvent, reagent, temperature range (low, room temperature, or
high) and products ...
Temple University Temperature Calculation of the Hydrochloric Acid Lab Report
List the starting materials, solvent, reagent, temperature range (low, room temperature, or
high) and products formed:
How long did it take to finish the reaction?
List any important IR peaks (If no noteworthy peaks, answer “none”).
Are there any IR peaks NOT PRESENT that indicate the product was formed? (Hint:
think about the functional groups of the starting material and the product)
List the 1H NMR peaks. List the peak number, chemical shift, multiplicity (splitting
pattern), and the integration.
List the 13C NMR peaks. List the peak number and the chemical shift.
What is the intermediate of this reaction?
What is the leaving group (Hint: think about the mechanism)?
What is the nucleophile? 2-methyl2-propanol +HCl =2-chloro2-methylpropane
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