Compound YYY is a fuel additive containing carbon, hydrogen, and oxygen only. Complete combustion of 1.80 g1.80\text{ g}1.80 g of compound YYY produces 3.52 g3.52\text{ g}3.52 g of CO2\text{CO}_2CO2 and 1.80 g1.80\text{ g}1.80 g of H2O\text{H}_2\text{O}H2O. The relative molecular mass of compound YYY is 90.0 g mol−190.0\text{ g mol}^{-1}90.0 g mol−1. Calculate the molecular formula of YYY and suggest one possible structural formula for the compound.
199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.