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Question

Chemistry Question on Electrochemistry

What is the standard reduction potential (E)(E^{\circ}) for Fe3+Fe{Fe^{3+} \to Fe} ? Given that : Fe2++2e>Fe;EFe2+/Fe=0.47V{Fe^{2+} + 2e^{-} -> Fe ; E^{\circ}_{Fe^{2+} / Fe} = - 0.47 V } Fe3++e>Fe2+;EFe3+/Fe2+=+0.77V{Fe^{3+} + e^{-} -> Fe^{2+} ; E^{\circ}_{Fe^{3+} / Fe^{2+}} = + 0.77 V }

A

0.057V-0.057\, V

B

+0.057V+0.057\, V

C

+0.30V+0.30\, V

D

0.30V-0.30\, V

Answer

0.057V-0.057\, V

Explanation

Solution

Answer (a) 0.057V-0.057\, V