Electrolysis Equation (1 Viewer)

[misbahf]

Does anyone know what the chemical equation for the electrolysis of Zinc sulfate is?

Thanks in advanced!

 

[f(sex)]

isnt it like zn2+ -> zn

so the zinc would coat on the cathode

 

[brenton1987]

2H₂O --> O₂ + 4H⁺ + 4e^- -1.23 V (Oxidation reaction at the anode)
Zn²⁺ + 2e^- --> Zn -0.76 V (Reduction reaction at the cathode)

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2H₂O + 2Zn²⁺ --> O₂ + 4H⁺ + 2Zn

 

[misbahf]

And the sulfate?

When i did the experiment, silver coated on one electrode and a black grey deposit on the other.

I used 2 zinc electrodes.

 

[brenton1987]

Nothing will happen to the sulfate.

2SO₄^2- --> S₂O₈^2- + 2e^- -2.01 V
2H₂O --> O₂ + 4H⁺ + 4e^- -1.23 V

The oxidation of water is a more favourable process compared with the oxidation of sulfate.

 

[misbahf]

Thank you sooo much!
You are a legend!
Thanks you thank you!!!