The Ecell for the following concentration cell at 25°C is 0.006.
Pt ∣ H2 (g, 0.025 atm) ∣ H+ (0.012 M) = H+ (1 M) ∣ H2 (g, 1 atm) ∣ Pt
2 H+(aq) + 2 e- → H2(g) E° = 0. V
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