1. The volume of a gas is 890 ml at 20C and at a pressure of 750 mmHg. The number of moles of gas molecules contained in this volume is .
2. This time we will solve for pressure given that we begin with 1.09 grams of hydrogen gas (H2, mol. wt = 2.02 g/mol) in a volume of 2L and at a temperature of 20C. The pressure is atm.
3. If one starts with 3 moles of a gas at a pressure of 762.3 mmHg and at a temperature of 24C, the associated volume would be L.
4. At conditions of standard temperature and pressure, the volume associated with 1.27 moles of nitrogen would be L.
5. We have a 50 L cylinder of gas at a pressure of 100 atm and a temperature of 35C. The amount of gas would correspond to moles