1. The problem statement, all variables and given/known data Could one expect to get a good thrust off oxygen and hydrogen fuel in a gaseous form, pumped at ~60 PSI into a 2 liter container? How much (in terms of mass) oxygen and hydrogen would be in the said container at such a pressure, assuming we have a 2/1 hydrogen/oxygen ratio in terms of moles? How did you calculate the amount in question? 2. Relevant equations - 3. The attempt at a solution I tried to use the ideal gas law, but it doesn't' seem to apply when there's a 2/1 molar mix of two gases in one container.