Question: what is the empirical formula if you have 92.24 carbon and 7.76 hydrogen?
Answer: Both Benzene (C6H6, molar mass = 78.12g/mol) and acetylene (C2H2, molar mass = 26.04g/mol) have the same percent composition (92.24 mass% carbon and 7.76% hydrogen) and the empirical formula, CH.