12.3 Date __________________ Period _______
Given: Ideal Gas Law =
then P = n =
V = T = R =
1. What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20.(C?
2. Oxygen gas is collected at a pressure of 123 kPa in a container which has a volume of 10.0 L. What temperature must be maintained on 0.500 moles of this gas in order to maintain this pressure? Express the temperature in degrees Celsius.
3. How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 100.0 kPa and a temperature of 100. (C? After determining the number of moles, calculate the number of grams of chlorine (Cl2) contained in this container?
4. What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20. (C and standard pressure?
5. Calculate the volume which 1.00 mole of a gas occupies at STP.
6. What volume would 20.0g of CO2 occupy at a temperature of 25 (C and a pressure of 105 kPa?
7. A 23.6g sample of an unknown gas occupies a volume of 12.0 L at standard temperature and pressure. What is the molecular mass of this gas?
8. What mass of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 110.0 kPa and a temperature of 25 (C?
9. What pressure would be required to contain 100.0 g of SO2 gas in a 25.0 L container at a temperature of 100. (C?
10. What pressure would a sample of gas have if the volume is 10.0 L the number of gas particles is 0.10 moles, and the temperature is 500. Kelvin?
11. What volume would a sample of gas have if the pressure is 8.2 atm, the number of gas particles is 2.0 moles, and the temperature is –73 degrees Celsius?
12. 22.00 g of CO2 has a