A9 Soluble Salts

Describe how to prepare soluble salts using;

1. Metal + Dilute acid
2. Metal oxide + Dilute acid
3. Alkali + acid

and experimental techniques such as filtration, evaporation, crystallisation and titration.

In the diagram below, an experiment is being shown:

1. Add 50cm³ Sulphuric acid (H₂SO₄) and 10g Copper Oxide (CuO) into a conical flask.
2. Apply a small amount of heat and stir/shake
3. Filter the contents of the flask into another conical flask
4. Place liquid into a evaporating dish and boil off some of the water and leave the rest to crystallise.
5. What you will result with is a salt, this salt is Copper Sulphate (CuSO₄)