A voltaic cell consists of a Zn/Zn2+ anode and a Ni/Ni2+ cathode at 25 ∘C. The...

A voltaic cell consists of a Zn/Zn²⁺ anode and a Ni/Ni²⁺ cathode at 25 ^∘C. The initial concentrations of Ni²⁺ and Zn²⁺ are 1.7 M and 0.12 M , respectively. The volume of half-cells is the same.

What is the concentration of Ni²⁺ when the cell potential falls to 0.456 V ?

Enter your answer to 4 decimal places and in units of mM.

Zn²⁺ (aq) + 2 e- ⟶Zn(s) E° = -0.76 V

Ni²⁺ (aq) + 2 e- ⟶ Ni(s) E° = -0.23 V

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Expert Solution

queen_honey_blossom answered 1 year ago

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