This question is about chemical analysis.
Lithium chloride is used in some industrial processes.
A chemist tested a sample of a solid additive to show the presence of lithium ions and of chloride ions.
The sample is soluble in water.
Plan a method the chemist could use to show that the sample contains lithium ions and chloride ions.
The chemist has:
You should give the results of the tests.
Which instrumental method could be used to show the presence of lithium ions in the sample?
Give one advantage of using this instrumental method instead of a chemical test.
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.