HCl exists in the stomach at a concentration of 0.1M at an average volume of 35ml. If the athletes were consuming 0.15g of glycine, calculate the % of the volume of HCl in the stomach that is consumed by the glycine

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).