Homework 17.1
Name:
Date:
Score:
1(a) The electrolytic cell has operated for a while.
(i) Name the ions present in the copper(II) sulphate solution. (1 mark)
(ii) State and explain the observable changes at the anode with the aid of a half-equation. (3
marks)
(iii) Is there any change in the colour intensity of the solution? Explain. (2 marks)
(b) The copper electrodes are replaced with graphite electrodes.
(i) State and explain the observable changes at the cathode with the aid of a half-equation.
(3 marks)
(ii) How does the colour intensity of the solution change? (1 mark)