complete combustion of $3\mathrm{.}7$ g of a hydrocarbon produced $11\mathrm{.}3$ g of CO$2$ and $5\mathrm{.}41$ g of H$2$O$.$ What is the empirical formula for the hydrocarbon? Calculate the number of moles of C$,$ H$,$ and O$.$ Divide the number of moles of carbon and hydrogen by the smallest of the two values.