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Calculations involving masses

Calculations involving masses

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Question 18

A student synthesises aspirin in the laboratory by reacting salicylic acid with ethanoic anhydride.

After recrystallisation and drying, the mass of pure aspirin successfully obtained is 6.38 g.

The theoretical maximum yield of aspirin for this reaction is 8.95 g.

Calculate the percentage yield of aspirin. Give your answer to 3 significant figures.

[2]
Markscheme

Calculations involving masses Questions

  1. GCSE
  2. /Chemistry
  3. /Calculations involving masses

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.

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