Calculate the relative formula mass of butane, C4H10\text{C}_4\text{H}_{10}C4H10.
(Relative atomic masses: H=1\text{H} = 1H=1, C=12\text{C} = 12C=12)
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.