ElectrochemistryHard
Question
The standard electrode potentials (reduction) of Pt/Fe2+, Fe3+ and Pt/Sn4+, Sn2+ are + 0.77 V and 0.15 V respectively at 25oC. The standard EMF of the reaction Sn4+ + 2Fe2+ → Sn2+ + 2Fe3+ is
Options
A.- 0.62 V
B.- 0.92 V
C.+ 0.31 V
D.+ 0.85 V
Solution
Ecell ⇒ EoSn4+/Sn2+ + EoFe2+/Fe3+ ⇒ 0.15 − 0.77.
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