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8.3 Identification of ions by chemical and spectroscopic means

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Question 26

A technician prepares a solution from salts used to colour glass.

The Bunsen burner has three settings.

SettingAir holeFlame
Pclosedyellow and quiet
Qpartly openblue and quiet
Rfully openblue and roaring
a.

Explain which burner setting the technician should use for a flame test.

[2]
b.

The solution contains potassium ions and a small amount of sodium ions.

Suggest the flame colour the technician is most likely to observe. Explain your answer.

[2]
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

93 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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