A mixture of hydrogen and xenon gases, in a 5.77 L flask at 84 °C, contains 0.433 grams of hydrogen and 19.4 grams of xenon. The partial pressure of xenon in the flask is atm and the total pressure in the flask is atm.

A mixture of nitrogen and oxygen gases is maintained in a 8.23 L flask at a pressure of 1.46atm and a temperature of 56 °C. If the gas mixture contains 6.54 grams of nitrogen, the number of grams of oxygen in the mixture is g.

The stopcock connecting a 4.26 L bulb containing xenon gas at a pressure of 7.79 atm, and a 4.85 L bulb containing hydrogen gas at a pressure of 4.65 atm, is opened and the gases are allowed to mix. Assuming that the temperature remains constant, the final pressure in the system is atm.