The standard oxidation potential of Ni/Ni2+ electrode is 0.236V. If th – InterviewSolution

1.	The standard oxidation potential of Ni/Ni2+ electrode is 0.236V. If this is combined with a hydrogen electrode in acid solution, at what pH of the solution, will the measured emf be zero at 25oC ? Assume [Ni2+]=1 M and pressure of hydrogen is kept at 1 atm.
Answer» The standard oxidation potential of $N i / N i^{2 +}$ electrode is $0.236 V$ . If this is combined with a hydrogen electrode in acid solution, at what pH of the solution, will the measured emf be zero at $25^{o} C$ ? Assume $[N i^{2 +}] = 1$ M and pressure of hydrogen is kept at 1 atm.

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