A sample of oxygen gas at a pressure of 1.00 atm and a temperature of 23.9 °C, occupies a volume of 684 mL. If the gas is compressed at constant temperature until its pressure is 1.25 atm, the volume of the gas sample will be __mL?
A sample of hydrogen gas at a pressure of 0.783 atm and a temperature of 27.6 °C, occupies a volume of 18.4 liters. If the gas is allowed to expand at constant temperature to a volume of 32.0 liters, the pressure of the gas sample will be __atm.