An antioxidant food supplement contains ascorbic acid (Vitamin C). Analysis shows that ascorbic acid has a relative formula mass of 176 and an empirical formula of C3H4O3\text{C}_3\text{H}_4\text{O}_3C3H4O3.
Deduce the molecular formula of ascorbic acid. You must show your working.
(Relative atomic masses: H=1\text{H} = 1H=1, C=12\text{C} = 12C=12, O=16\text{O} = 16O=16)
258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.