A 778 mL sample of NH3 gas is at STP. If the volume changes to 598 mL and the temperature changes to 24ºC, what will be the new pressure in atmospheres?
A sample of O2 gas was collected over water at 23ºC and 731 torr. What is the partial pressure of the O2? (The vapor pressure of water at 23ºC is 21.2 torr.)
A mixture contains O2 at 700. torr pressure, F2 at 200. torr pressure, and Cl2 at 500. torr pressure. What is the total pressure of the gases in the system?
A sample of methane gas, CH4, was collected over water at 25.0 ºC and 870. torr. The volume of the wet gas is 2.40 L. What will be the volume of the dry methane at standard pressure?