What is the molar mass of a gas if a 0.950 gram sample of it occupies 232 mL at 95 °C and 0.985 atm?
The molar mass of the gas is
First calculate the moles of the gas using the gas law,
Rearrange the equation to isolate
(I'm keeping a couple of guard digits to reduce rounding errors. I'll round to three significant figures at the end.)
Molar Mass of Gas