The molecular formula of hexane is C6H14\text{C}_6\text{H}_{14}C6H14.
Which of the following is the empirical formula of hexane?
C2H5\text{C}_2\text{H}_5C2H5
C3H7\text{C}_3\text{H}_7C3H7
C6H14\text{C}_6\text{H}_{14}C6H14
CH2\text{CH}_2CH2
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.