a-certain-voltaic-cell-has-a-cell-potential-of-1-60-v-works-on-an-overall-reacti

Question

A certain voltaic cell has a cell potential of +1.60 V works on an overall reaction of AuBr₄^–(aq) + Cr(s) → Au(s) + 4 Br^–(aq) + Cr³⁺(aq). Provide the two half-cell reactions involved.

Accepted Answer

Oxidation half-reaction: Cr(s) → Cr³⁺(aq) + 3 e^–
Reduction half-reaction: AuBr₄^–(aq) + 3 e^– → Au(s) + 4 Br^–(aq)

Answer

Oxidation half-reaction: Cr(s) + 3 e^– → Cr³⁺(aq)
Reduction half-reaction: AuBr₄^–(aq) + 3 e^– → Au(s) + 4 Br^–(aq)

Answer

Oxidation half-reaction: AuBr₄^–(aq) → Au(s) + 4 Br^–(aq) + 3 e^–
Reduction half-reaction: Cr(s) → Cr³⁺(aq) + 3 e^–

Answer

Oxidation half-reaction: AuBr₄^–(aq) + 3 e^– → Au(s) + 4 Br^–(aq)
Reduction half-reaction: Cr(s) + 3 e^– → Cr³⁺(aq)

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