posted by Bill .
At a certain temperature and pressure, one liter of CO2 gas weighs 1.45 g. What is the mass of one liter of C4H10 gas at the same temperature and pressure?
Equal volume of gases at the same T and P contain the same number of molecules (and mols).
mols CO2 = 1.45/44 = 0.03295
Then 0.03295 x molar mass C4H10 = ?