Question: what is the empirical formula mass of c2h4?
Answer: example: CH2 is the empirical formula for C2H4, C3H6, C5H10, C8H16 etc. example: Vitamin C (molar mass = 176.1 g/mol) is composed of 40.9% C, 4.57% H and 54.5% O by mass. Determine the empirical and molecular formulas of vitamin C. 1.