Practice question
Question
What is the standard emf of a cell with the reaction Co(s) + Ni²⁺(aq) → Co²⁺(aq) + Ni(s) ? (Given: E°Co²⁺/Co = -0.28 V , E°Ni²⁺/Ni = -0.25 V )
Explanation
E°cell = E°cathode - E°anode = -0.25 - (-0.28) = 0.03 V .
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