What happens to the molar volume when the pressure increases

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

How are the terms group and period used on the periodic table

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).