GCSE Chemistry Required Practical: Electrolysis of a Solution
Key Stage 4
Meaning
Perform an electrolysis experiment to observer what happens when an aqueous solution is electrolysed.
Method
- Pour 50ml of Copper (II) Chloride solution into a 100ml beaker.
- Place two Carbon electrodes held apart from one another by an electrical insulator.
- Attach a direct current power pack to the electrodes using wires and crocodile clips.
- Set the potential difference to 4 Volts.
- Record your observations of changes at each electrode. You may also use a pH indicator paper next to the anode and note any colour change.
- Repeat this experiment for the following solutions; Copper (II) Sulphate, Sodium Chloride and Sodium Sulphate.