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Question: an electrolysis reaction with zn and br 2br gt br2...

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An electrolysis reaction with Zn and Br.

2Br- --> Br2 + 2e- (cell ox is -1.07V)

Zn2+ + 2e- --> Zn (cell red is -0.76).

ecell = Ered,cathode + Eox,anode

= -1.83V

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