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3.3 Yield and atom economy of chemical reactions

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Question 12

A production run is used to make sodium carbonate. The process record is shown.

QuantityMass
Maximum theoretical mass125 kg
Mass obtained after purification105 kg

What is the percentage yield?

[1]
A

16.0 %

B

84.0 %

C

119 %

D

19.0 %

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

104 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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