Testing for ions

Joshua Rees
Mind Map by , created over 3 years ago

This mindmap shows the ions in a solution and the corresponding process to test for those ions in order to ensure that they are definitely present in the solution.

Eye 214
Pin 27
Balloon left 0
Joshua Rees
Created by Joshua Rees over 3 years ago
Elements, Compounds and Mixtures
silviaod119
Organic Chemistry
Megan Tarbuck
C1:Making Crude Oil Useful (Science-GCSE)
Temi Onas
PuKW - STEP 1 (mögliche Prüfungsfragen/Prüfungsvorbereitung)
Steven Lee
Část 16.
Nikola Truong
Testing for ions
Joshua Rees
Flame tests
Joshua Rees
Chemistry Ion Testing Quiz
Ben Botting
AS-Level Chemistry: Unit 1:The Atom
Daena Targaryen
Acids and Bases
silviaod119
Testing for ions
1 Ammonium ions can be tested for by adding a few drops of dilute sodium hydroxide solution and heating.
1.1 If ammonium ions are present, ammonia gas will be a product of the reaction and will turn red litmus paper blue.
2 Carbonate ions can be tested for by adding some dilute hydrochloric acid.
2.1 If carbonate ions are present, carbon dioxide gas will be a product of the reaction and will turn limewater cloudy.
3 Sulphate ions can be tested by firstly adding some dilute hydrochloric acid followed by some barium chloride solution.
3.1 If sulphate ions are present, barium sulphate will be a product of the reaction and a white precipitate will form.
4 Halide ions
4.1 Halide ions can be tested for by adding some dilute nitric acid followed by some silver nitrate solution
4.1.1 Different halides form different coloured precipitates as different products are formed.
4.1.1.1 Chlorine ions
4.1.1.1.1 Silver chloride
4.1.1.1.1.1 White precipitate
4.1.1.2 Bromide ions
4.1.1.2.1 Silver bromide
4.1.1.2.1.1 Cream precipitate
4.1.1.3 Iodide ions
4.1.1.3.1 Silver iodide
4.1.1.3.1.1 Yellow precipitate
5 Nitrate ions
5.1 Nitrate ions can be tested for by adding some sodium hydroxide solution followed by some aluminium powder or foil and then heating strongly.
5.1.1 If nitrate ions are present, ammonia gas will be a product of the reaction and will turn red litmus paper blue because it is a strong alkali.

Media attachments