Ideal Gas Law
What are the four physical properties that effect gases? How does each property effect one another?
Standard temperature and pressure (STP):
Example problem: Calculate the number of moles of ammonia gas in a 3.0L vessel at 27ºC and 1.50atm.
1. How many moles of nitrogen gas are in a balloon that has a volume of 15.9 L at a pressure of 149 kPa and a
temperature of 28°C?
2. The red carbon dioxide fire extinguisher on the wall has a volume of 5.25 L. Assuming the gas is at 23°C and
8atm, how many moles of CO2 are in the fire extinguisher? How many grams?
3. There are 2.20 mol of NH3 gas in a tank that has a pressure of 199 kPa and a temperature of 25°C. What is the
volume of the tank?
4. How many moles of CO2 are contained in 35 mL at 1.2 atm of pressure and 20 deg C?
a. How many grams of CO2 is this?
5. What is the volume of 12 grams of N2 at 110 kPa and 30 deg C?