A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · May/June 2020 · Q21 Mark

A copper ore contains 3.00% of copper carbonate, CuCO3, by mass. Which mass of copper would be obtained from 1 tonne of the ore?

A1.91 kg

B3.71 kg

C15.4 kg

D58.4 kg

✓ Correct answer

C: 15.4 kg

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 2.

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