A galvanic cell consists of a ni2 + / ni half-cell and a standard hydrogen electrode. if the ni2 + / ni half-cell standard cell functions as the anode, and the standard cell potential is 0.26 v, what is the standard reduction potential for the ni2 + / ni half-cell?

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Chemistry

Myla Haynes

12 March, 07:14

A galvanic cell consists of a ni2 + / ni half-cell and a standard hydrogen electrode. if the ni2 + / ni half-cell standard cell functions as the anode, and the standard cell potential is 0.26 v, what is the standard reduction potential for the ni2 + / ni half-cell?

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Lesly · Answer 1

You are given a galvanic cell consists of a Ni²⁺ / Ni half-cell and a standard hydrogen electrode. Also, you are given that the half cell Ni²⁺ / Ni will act as an anode, and the standard cell potential is 0.26V. You are asked to find the standard reduction potential for the half cell Ni²⁺ / Ni.

You will have a half - reaction for both nickel and hydrogen

The conversion of the symbol Ni²⁺ / Ni half-cell is

Ni²⁺ + 2e⁻ → Ni (s) E = 0.26V

and the conversion of the standard hydrogen electrode (SHE) is

2H⁺ + 2e⁻ → H₂ (g) E = 0V

Since H⁺ ions is a it difficult to set up during the process, nickel will be deposited at the cathode side instead of the anode. Therefore, The standard electron potential of the nickel will have - 0.26V.