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3.3 Yield and atom economy of chemical reactions

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Question 3
F

A student separated salt from a mixture of salt and sand. The mixture contained 16.0 g of salt. The student obtained 13.6 g of salt.

a.

Calculate the percentage yield of salt.

Use the equation: percentage yield = (mass of salt obtained / mass of salt in the mixture) × \times\,× 100

[2]
b.

Give one reason why the mass of salt obtained was less than the mass of salt in the mixture.

[1]
Markscheme

3.3 Yield and atom economy of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Yield and atom economy of chemical reactions

39 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1a Percentage yield, 3.3.1b Theoretical mass of a product, 3.3.2a Atom economy, and 3.3.2b Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.

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