Essential Chemistry for IGCSE - Electricity And Chemistry (Section 4 - No. 28)
What happens to the concentration of copper(II) ions in a copper sulfate solution when copper electrodes are used for electrolysis?
Increases
Decreases
Remains constant
The concentration will change, making it too acidic
Explanation
With copper electrodes, copper dissolves from the anode and deposits on the cathode, so the concentration of copper(II) ions stays the same.
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