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6.2 Quantitative analysis

6.2 Quantitative analysis

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Question 12
F

Iron can be made by reducing iron(III) oxide with carbon monoxide: Fe2O3+3CO→2Fe+3CO2\mathrm{Fe_{2}O_{3} + 3CO \rightarrow 2Fe + 3CO_{2}}Fe2​O3​+3CO→2Fe+3CO2​

What is the atom economy for making iron by this reaction? (Relative atomic masses: C = 12, O = 16, Fe = 56)

[1]
A

29.8%

B

45.9%

C

56.0%

D

71.8%

Markscheme

6.2 Quantitative analysis Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Quantitative analysis

157 exam-style questions on Edexcel GCSE Chemistry 6.2 Quantitative analysis, covering 6.2.1 Concentration in mol dm⁻³ and titration calculations, 6.2.2 Percentage yield and why actual yield falls short, 6.2.3 Atom economy of a reaction, 6.2.4 Choosing a reaction pathway, and 6.2.5 Molar volume of gases and Avogadro's law. Each one has a worked solution and a mark scheme showing where the marks go.

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