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3.3 Yield and atom economy of chemical reactions

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Question 2

In a blast furnace, iron(III) oxide reacts with carbon monoxide to produce iron.

Fe2O3+3CO→2Fe+3CO2\mathrm{Fe_2O_3 + 3CO \rightarrow 2Fe + 3CO_2}Fe2​O3​+3CO→2Fe+3CO2​

Relative atomic masses (ArA_rAr​): C = 12, O = 16, Fe = 56

Calculate the percentage atom economy of this process for obtaining iron. Give your answer to 3 significant figures.

[3]
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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