1.  Where did the R constant in PV=nRT come from, and why must we convert everything to the units of the R constant? 2.  Why does the density of water change with its temperature? 3.  If all of the gas was not vaporized before taking the mass (some stayed in liquid form), how would that affect the final molar mass calculation? 4. If a sample of ethanol (C2H6O) was determined to have a pressure of 2 atm at a temperature of 25°C, what is its density (in g/L)?

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter8: Gases
Section: Chapter Questions
Problem 96E: In the Mthode Champenoise, grape juice is fermented in a wine bottle to produce sparkling wine. The...
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1.  Where did the R constant in PV=nRT come from, and why must we convert everything to the units of the R constant?

2.  Why does the density of water change with its temperature?

3.  If all of the gas was not vaporized before taking the mass (some stayed in liquid form), how would that affect the final molar mass calculation?

4. If a sample of ethanol (C2H6O) was determined to have a pressure of 2 atm at a temperature of 25°C, what is its density (in g/L)?

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