What is the standard cell potential (E°cell) for the voltaic cell based on the reaction below? Sn2+ (aq) + 2Fe3+ (aq) → 2Fe2+ (a
q) + Sn4+ (aq)
1 answer:
Answer:
+ 0.617 v
Explanation:
Sn2+ (aq) + 2Fe3+ (aq) → 2Fe2+ (aq) + Sn4+ (aq)
half-life
Sn²⁺ → Sn⁴⁺ + 2e⁻ oxidation E ox = -0.154 v
2 Fe³⁺ + 2e⁻ → 2 Fe ²⁺ reduction E red = + 0.771 v
E° cell = E°red + E° ox = +0.77 v + (-0.154 v) = + 0.617 v
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