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Question

What is the potential of a hydrogen electrode in a solution with pH = 10 at 298 K? (Given: E°H⁺/H_₂ = 0.00 V )

Options

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Explanation

E = E° - (0.059/n) log (1/[H⁺]) , [H⁺] = 10⁻¹⁰ , n = 1 . E = 0 - 0.059 × 10 = -0.59 V .