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10.1 Using the Earth's resources and obtaining potable water

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Question 4

A metal-recovery plant processes a low-grade ore containing 0.24 % copper by mass. The process obtains 80 % of the copper in the ore as copper metal.

The plant must produce 2.7 tonnes of copper metal.

Calculate the mass of low-grade ore that must be processed.

Give your answer in tonnes.

[3]
Markscheme

10.1 Using the Earth's resources and obtaining potable water Questions

  1. GCSE
  2. /Chemistry
  3. /10.1 Using the Earth's resources and obtaining potable water

87 exam-style questions on AQA GCSE Chemistry 10.1 Using the Earth's resources and obtaining potable water, covering 10.1.1 Using the Earth's resources and sustainable development, 10.1.2 Potable water, 10.1.3 Waste water treatment, and 10.1.4 Alternative methods of extracting metals. Each one has a worked solution and a mark scheme showing where the marks go.

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