The experiment which I carried out aimed to monitor the quantity of Copper (Cu) metal that deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables were changed.

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Chemistry Coursework

Jovan Djordjevic

Year 10

Electrolysis Experiment

Variables:

The experiment which I carried out aimed to monitor the quantity of Copper (Cu) metal that deposited during the electrolysis of Copper Sulphate solution (CuSo4) using Copper electrodes, when certain variables were changed. The following factors could affect the experiment:

  1. Time
  2. Current
  3. Temperature
  4. Size of the Electrodes
  5. Distance between the electrodes

Procedure:

Copper Sulphate solution (50cm3) was poured into a small beaker. The two copper electrodes were firstly cleaned using water. Then electrodes were weighed, their masses recorded and placed into the beaker containing the Copper Sulphate solution. The electrodes were connected to a battery set (cell) and ammeter. A current flowed (0.2 Amps) and the experiment was stopped at certain points (after each minute) to record the results. At the end of the experiment (when all the results were obtained) the current was switched off and both electrodes were removed from the solution. They were then washed with water. Once clean and dry both electrodes were both carefully weighed and we recorded their masses.

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Diagram:

        +       -                                                

        Cables

                 Copper Anode                                                                                      Copper Cathode

        CuSO4 Solution

List of Apparatus Used:

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