J. Muench WORKSHEET #10 __________________ CHEM 161 name 1. A 275mL sample of a gas at 25oC is cooled to -20oC. What is the new volume? Assume that the pressure is constant. 2. A 350.mL sample of a gas at 752mmHg is compressed until its volume is reduced to 104mL. What is the pressure of the gas? Assume that the temperature is constant. 3. A vapor with a mass of 0.873g occupied 528mL at 99.5oC and a pressure of 756.8mmHg Calculate the molecular weight of the vapor. 4. A gas occupying a balloon with a volume of 8.29 L and at 752 mmHg and 23oC is released into the atmosphere. If the balloon expands to 11.39 L at a pressure of 358 mmHg, then what is the temperature of the gas in oC? 5. A gas mixture in a 2.50L cylinder contains 4.00g of N2 and 2.00g of O2 at a temperature of 22oC. Determine (a) the total pressure of the two gases and (b) the partial pressure of each of the two gases.J. Muench 6. The metabolic breakdown of glucose, C6H12O6, produces CO2, which is expelled from the body through the lungs. What volume of CO2 is produced when 15.0g of glucose is burned at 37oC and 1.0atm? The reaction is: C6H12O6(s) + 6 O2(g) 6 CO2(g) + 6 H2O(l) 7. Place the following gases in order of increasing molecular speeds at 25oC. CO , SF6 , Cl2 , H2S 8. A gas is analyzed and found to contain 85.7% Carbon and 14.3% Hydrogen by mass. If a sample of this gas of mass 1.56g has a volume of 1.00 L at 0.984atm and 50.0oC, then what is the Molecular Formula of this