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8.1 Purity, formulations and chromatography

8.1 Purity, formulations and chromatography

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Question 12

E15 and E85 are biofuel mixtures containing ethanol and petrol. The table below shows information about these dual-component fuels:

\begin{array}{|c|c|c|} \hline \textbf{Fuel} & \textbf{Percentage (%) by mass of ethanol} & \textbf{Percentage (%) by mass of petrol} \\ \hline \text{E15} & 15 & 85 \\ \hline \text{E85} & 85 & 15 \\ \hline \end{array}

Calculate the mass of ethanol in 3.6 kg3.6\text{ kg}3.6 kg of E15. Give your answer in grams (g\text{g}g).

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Markscheme

8.1 Purity, formulations and chromatography Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 Purity, formulations and chromatography

28 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.

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