Nickel and Chrome plate. Image credit 1911forum.com

Nickel and Chrome plate. Image credit 1911forum.com

ZIMSEC O Level Combined Science Notes: Experiment Chrome plating a nickel cathode

Aim: To chrome plate a nickel cathode

Materials: nickel-plated  electrode, lead electrode, beaker, chromic acid

Method

  1. Set up an electrolytic cell using a nickel plated cathode from this experiment
  2. Place 200cm3 of chromic acid solution in a beaker
  3. Warm it up to 40°C
  4. Pass a current through the solution for about 20 minutes
  5. Switch off the current and disconnect the cathode

Observations and results

  • The nickel plated cathode is covered by chrome and achieves a glossy finish
  • It does adhere well even during polishing
  • Chrome shines more than nickel

To access more topics go to the Combined Science Notes page.

Quick NetOne, Telecel, Africom, And Econet Airtime Recharge

If anything goes wrong, chat with us using the chat feature at the bottom right of this screen