Questions and answer gas laws

1. a. How many moles of N2 gas occupy a volume of 775 mL at 8.40 atm and 335 Kelvin?

b. How many grams of N2 are formed from the above?

2. A sample of gas at constant temperatures has a volume of 400.0 mL and a pressure of 760.0 torr.
What volume (in Liters) will it occupy at 595.0 torr?

3. At a temperature of 0C, a gas occupies 22.4Liters. How hot must the gas be, in celsius, to reach a volume of 25.0Liters?

4. A Student obtained a balloon containing 0.500 moles of helium at a volume of 1.75 liters. The student’s lab partner added 0.250 moles of nitrogen gas into the balloon. The contents of the balloon were held at constant pressure and temperature. What is the balloon’s final volume (in liters).

5. a. A mixture of gases contain 64.5 grams of oxygen gas, 50.0 grams of nitrogen gas, and 150.0 grams of chlorine gas. Calculate the mole fraction for each.

b. If the total pressure of the gas sample was 5.00 atmospheres, calculate the partial pressure of each gas.

6. Which of the following gases will have the highest velocity?

a. Cl2 b. O2 c. Kr d. C3H8 e. F2