Question: what is the empirical formula for a compound which has 48.64 c 8.16 h 43.20 o?
Answer: That is, 48.64% C becomes 48.64 g C, 8.16% H becomes 8.16 g H, and 43.20% O becomes 43.20 g O. Step 4: If necessary, multiply these numbers by integers in order to get whole numbers; if an operation is done to one of the numbers, it must be done to all of them. Thus, the empirical formula of methyl acetate is C3H6O2.