Core Practical - Copper Sulfate

• Copper atoms in the anode are oxidised to form copper ions (mass decreases).

  $Cu -> Cu(2+) +$$2e(-)$
• Positive copper ions in the solution are attracted to and move towards the cathode.
• Copper ions from the solution are reduced to form copper atoms. The mass increases.

  $Cu (2+) +$$2e (‐) ->Cu$
• The electrolyte is copper sulfate.

  Cu (2+), SO4 ²-