"Carbon dioxide emissions associated with a one-night stay in a hotel room are calculated at 28.71 kg of CO2 per room day for an average hotel. If your hotel's 100 rooms are all occupied for 4 days during a college football game, how much CO2 did the guests and hotel release into the atmosphere

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).