Gas X is found to be 24.0% carbon and 76.0% fluorine by mass. Given that the molar mass of gas X is 200.04 g/mol, determine its molecular formula. Posted on September 5, 2021 | by wp Gas X is found to be 24.0% carbon and 76.0% fluorine by mass.Given that the molar mass of gas X is 200.04 g/mol, determine its molecular formula.