You be on the moon chillin and you decide to do a chemical reaction. You obtain a 67.1g container and place 93.7g of butane and 751.9g of oxygen inside the container and seal it where they react with one another. When the reaction is completed, you are left with 294.5g of water, some amount of methane and 94.6g of carbon dioxide. How much methane was produced in this reaction? (the conditions on the moon have no impact on this reaction.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.