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Chemical Reactions

The standard ...

Question

The standard oxidation potential of $N i | N i^{2 +}$ electrode = 0.236 V. If this is combined with a hydrogen electrode in acid solution, at what pH of the solution will the measured emf be zero at 25 ºC. Assume $[N i^{2 +}]$ = 1M.

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Solution

The correct option is C
4

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Similar questions

N i / N i^{2 +} (N i^{2 +} = 1 M)

0.236 V

(P_{H_{2}} = 1 a t m)

p H

25

^{o}

N i / N i^{+ 2}

0.236 V

p H

25^{\circ} C

[N i^{+ 2}] = 1 M, \frac{R T}{F} = 0.059 V

25^{o} C > N i^{2 +} (0.1 M) | N i (s)

N i^{2 +} / N i

- 0.25

N i | N i^{2 +} | | C u^{2 +} | C u

H_{2} (1 a t m) | H^{+} (p H = x) | |

25^{\circ} C

- 0.28 V

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