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Purity and separating mixtures

Purity and separating mixtures

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Question 14

An alloy that contains gold, silver, and copper has 94% gold and 3.5% silver. The rest is copper. What is the mass of copper in 16.0 g of the alloy?

A

0.4 g0.4\text{ g}0.4 g

B

0.56 g0.56\text{ g}0.56 g

C

4.0 g4.0\text{ g}4.0 g

D

5.6 g5.6\text{ g}5.6 g

Markscheme

Purity and separating mixtures Questions

  1. GCSE
  2. /Chemistry
  3. /Purity and separating mixtures

46 exam-style questions on OCR GCSE Chemistry Purity and separating mixtures. Each one has a worked solution and a mark scheme showing where the marks go.

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