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6.2 Quantitative analysis

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Question 32

Iron powder is added to an excess of copper(II) sulfate solution.

Fe(s)+CuSO4(aq)→FeSO4(aq)+Cu(s)\mathrm{Fe(s) + CuSO_{4}(aq) \rightarrow FeSO_{4}(aq) + Cu(s)}Fe(s)+CuSO4​(aq)→FeSO4​(aq)+Cu(s)

A student uses 2.80 g of iron. The percentage yield of copper is 80.0%.

What mass of pure, dry copper does the student collect?

(Relative atomic masses: Fe = 56, Cu = 63.5)

[1]
A

2.54 g2.54\,\mathrm{g}2.54g

B

3.18 g3.18\,\mathrm{g}3.18g

C

3.97 g3.97\,\mathrm{g}3.97g

D

2.24 g2.24\,\mathrm{g}2.24g

Markscheme

6.2 Quantitative analysis Questions

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

151 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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