Find the empirical and molecular formula of a compound with a percent composition of 76.6% C, 6.4% H and 17.0% 0, when the molecular mass is 188.0 g.
Empirical Formula:
Molecular Formula:

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?