Close Problem Use combustion analysis to determine empirical and molecular formulas (C,H, and O). A 9.884 gram sample of an organic compound containing C,H and O is analyzed by combustion analysis and 21.30 grams of CO2 and 8.720 grams of H2O are produced. In a separate experiment, the molar mass is found to be 102,1g/mol. Determine the empirical formula and the molecular formula of the organic compound. Enter the elements in the order C,H,O empirical formula = molecular formula =