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Halide and ammonium ions

Description

GCSE Chemistry Mind Map on Halide and ammonium ions, created by Lucy Sherburn on 15/06/2017.

Mind Map by Lucy Sherburn, updated more than 1 year ago

	Created by Lucy Sherburn over 7 years ago

Resource summary

Halide and ammonium ions

Halide ions
1. The method
  1. Add dilute nitric acid
    1. Add silver nitrate solution
2. Depending which halide ion is present, a different precipitate forms
3. Iodide forms a yellow precipitate
4. Bromide forms a cream precipitate
5. Chloride forms a white precipitate
Ammonium ions
1. The method
  1. Mix the sample with dilute sodium hydroxide solution
    1. Warm it using a Bunsen burner flame
      1. Ammonia gas released if there are ammonium ions
        Gas has distinctive smell and turns red litmus paper blue

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