Empirical formulas Conversely, from experimentally measured mass percents of elements, the relative numbers of moles of each element within a compound can be determined to give an empirical formula. (If we know the molar mass of the compound, the actual molecular formula can also be determined.) Analysis of a carbohydrate shows that it contains 40.0%C,6.7%H, and 53.3%O by mass. In 100.0g of this compound, how many moles of each element are present? Express your answer as numbers in decimal (non-scientific) notation; for full credit, the last digit of your answer should be within 1 of the correct value, with an appropriate number of significant figures. moles C moles H moles 0 Convert the relative numbers of moles to simple ratios with the smallest whole numbers. Determine the empirical formula of this compound (enter "1" explicitly if required)