1) To evaluate R, the volume of a gas measured in ______, while the temperature of the gas is measured in ______. a) cubic meters b) milliliters; Kelvin c) liters; Celsius d) liters; Kelvin 2) In the ideal gas equation, R represents a) Rigidity b) The universal gas constant c) Randomness d) The amount of gas 3) A sample of kripton gas in a container of volume 1.9 L exerts a pressure of 0.533 atm at 21°C. How many gas are present? (Don't forget to convert °C to K and R=0.08206 L*atm/K*mol)) a) 0.58 mol b) 0.82 mol c) 0.04 mol d) 0.0007 mol 4) 355 g of chlorine gas (MW=70.9 g/mol) is held in a vessel with a fixed volume of 70L. What is the pressure of the gas in atm if the T=30°C? a) 1345.2 mmHg b) 1345.2 torr c) 1.77 atm d) 1.77 torr 5) A sample of He gas occupies 12.9 Lat 315 K and 1.2 atm. How many moles of He does the sample contain? a) 0.23 b) 0.7 c) 0.59 d) 0.25 6) How many moles of CO2 occupy a V=81.3 Lat 204 kPa and t=95°C? a) 0.123 b) 5.42 c) 27.2 d) 0.85

Ideal gas law

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