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8.3 Identification of ions by chemical and spectroscopic means

8.3 Identification of ions by chemical and spectroscopic means

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Question 19

Runoff from a water treatment facility processing alum-treated clay is suspected to contain dissolved aluminium sulfate.

a.

Describe a chemical test to show that the runoff sample contains aluminium ions.

Give the result of the test.

Test

Result

[3]
b.

Describe a chemical test to show that the runoff sample contains sulfate ions.

Give the result of the test.

Test

Result

[2]
c.

Plan an investigation to find the total mass of dissolved solids in a 200 cm3200\text{ cm}^3200 cm3 sample of this runoff.

Your investigation should produce valid results.

[4]
Markscheme

8.3 Identification of ions by chemical and spectroscopic means Questions

  1. GCSE
  2. /Chemistry
  3. /8.3 Identification of ions by chemical and spectroscopic means

29 exam-style questions on AQA GCSE Chemistry 8.3 Identification of ions by chemical and spectroscopic means, covering 8.3.1 Flame tests, 8.3.2 Metal hydroxides, 8.3.3 Carbonates, 8.3.4 Halides, 8.3.5 Sulfates, 8.3.6 Instrumental methods, and 8.3.7 Flame emission spectroscopy. Each one has a worked solution and a mark scheme showing where the marks go.

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