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suppose i wanted to collect and find the mass of gas produced in a chemical reaction. how could i do this?
Here is the best method. With the volume of water displaced, use PV=nRT to get moles and then grams. You know P,V,R,T from the experiment.
http://science.csustan.edu/byrd/chem1002/gasevol.htm
An alternative is this. Use this apparatus where you use a vessel that has volume markings instead of the test tube. The change from before and after will give you the volume and using PV=nRT, you can find n, the number of moles and thus the mass. This will be an approximation. To be more accurate, you would need special equipment and a vacuum line.
http://everything2.com/title/collecting+a+gas+over+water
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Dr. Henry Boyter, Jr.
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Chemistry (non-biochemistry), environmental science, occupational health and safety, environmental regulation and management, environmental engineering, and wastewater engineering. I'm the Director of Environmental, Health, and Safety and the Director of Research at the Institute of Textile Technology.
Experience
Chemistry (non-biochemistry), environmental science, occupational health and safety, environmental regulation and management, environmental engineering, and wastewater engineering. I'm the Director of Environmental, Health, and Safety and the Director of Research at the Institute of Textile Technology.
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PhD, MS, BS in Chemistry
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