Question: How many volts is the standard cell electronics E for the following battery consumption? Cr (k) + 3Fe3+ (aqueous) 3Fe2+ (aqueous) + Cr3+ (aqueous) ECr+3/Cr

How many volts is the standard cell electronics E for the following battery consumption?
Cr (k) + 3Fe3+ (aqueous)  3Fe2+ (aqueous) + Cr3+ (aqueous) ECr+3/Cr = -0.74 V; EFe+3/Fe+2 = +0.77 V

A. -1.51

B. -0.03

C. +1.51

D. +0.03

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