13. What is the theoretical oxidation potential of a standard hydrogen electrode placed in a basic s — Electrochemistry Chemistry Question
Question
13. What is the theoretical oxidation potential of a standard hydrogen electrode placed in a basic solution where pH = 10? (Assume $P_{H_2} = 1$ atm and $T = 298$ K)
Answer: B
💡 Solution & Explanation
The oxidation reaction is $H_2 \rightarrow 2H^+ + 2e^-$. Using Nernst equation: $E_{OP} = E^\circ_{OP} - \frac{0.0591}{2} \log[H^+]^2 = 0 - 0.0591 \log(10^{-10}) = -0.0591 \times (-10) = +0.591$ V.
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