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Electrolysis of copper sulfate

Inert electrodes: what forms at each electrode?

Topic: ElectrochemistryGrade: 11Free

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What you do

  1. Press “Electrodes” to switch on the current. Tip: speed ×5.
  2. Watch the cathode (−): what is the brown-pink coating?
  3. Test the gas at the anode (+) with a glowing splint.
  4. Turn on the pH meter: why does the solution become acidic?

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