When a 0.25000 g of an unknown liquid hydrocarbon containing only carbon and hydrogen was burned in a combustion apparatus two products were collected: 8.4510 x10-1 g of CO2 and 1.7297 x 10-1 g of H2O. 5.1.1 Use the information in 5.1 above to determine the empirical formula and empirical mass of the unknown liquid hydrocarbon.