1). Determine the number of moles of gas contained in a 1.25 L container at 25 degrees Celsius and 800 torr?

2). A given sample of a gas has a volume of 3.0 L at a pressure of 4.0 atm. If the temperature remains constant and the pressure is changed to 6.0 atm, what is the new volume?

3). Calculate the volume of nitrogen dioxide gas when it is at a pressure of 4.5 atm, containing 0.860 moles at 27.0 degrees Celsius:

4). A 2.0 L sample of helium gas is at STP conditions. The temperature is then raised to 27 degrees Celsius and the pressure decreased to 80 kPa. What is the new volume of the helium sample?

5). A gas has a pressure of 120 kPa, a temperature of 400 K and a volume of 50.0 mL. What volume will the gas have at a pressure of 60 kPa and a temperature of 200 K?

6). The pressure on 20 mL of a gas at constant temperature is changed from 4.0 atm to 2.0 atm. The new volume of the gas is:

7). As the volume of a 1 mole sample of gas increases, with temperature remaining constant, the pressure exerted by the gas:

8). The volume of a sample of gas at 0 degrees Celsius is 100 liters. If the volume of the gas is increased to 200 liters at constant pressure, what is the new temperature of the gas (in Kelvin)?

9). At STP, 32 grams of O2 would occupy the same volume as:

10). Calculate the pressure exerted by 2.50 L of HF gas containing 1.35 moles at 320 K?

11). A sample of gas occupies 6.00 L at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K, the volume of the gas sample would be:

12). A mixture of gases contains oxygen, nitrogen, and hydrogen at 0 degrees Celsius. The partial pressure of the oxygen gas is 20 kPa, the partial pressure of nitrogen gas is 40 kPa, and the partial pressure of hydrogen gas is 14 kPa. What is the total pressure exerted?

13). If the pressure on 36.0 mL of a gas at STP is changed to a pressure of 35.3 kPa at constant temperature, the new volume of the g

14). Find the mass of O2 gas present in a 5.60 L container at 1.75 atm and 250 K?

15). A gas occupies a 1.5 L container at 25 degrees Celsius and 2.0 atm. If the gas is transferred to a 3.0 L container at the same temperature, what will be its new pressure?

16). A sample of gas in a rigid container is stored at 3.0 atm pressure and 25 degrees Celsius. The temperature is raised to 60 degrees Celsius. What is the pressure now inside the container?

17). According to Boyle's Law, the volume of a gas varies directly with its pressure when temperature is held constant. True or false?

18). According to Gay-Lussac's Law, the pressure of a gas varies directly with its temperature when volume is held constant. True or false?

19). A sample of neon gas occupies a volume of 752 mL at 25 degrees Celsius. What volume will the gas occupy at -10 degrees Celsius?

20).A sample of oxygen gas has a volume of 150 mL with a pressure of 0.947 atm. What will the volume be if pressure is increased to 770 torr?