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A Voltaic Cell Consists of a Cd/Cd2+ Electrode (E° =

Question 75

Multiple Choice

A voltaic cell consists of a Cd/Cd2+ electrode (E° = -0.40 V) and a Fe/Fe2+ electrode (E° = -0.44 V) . If Ecell = 0 and the temperature is 25°C, what is the ratio [Fe2+]/[Cd2+]?


A) 2 × 101
B) 1 × 101
C) 1
D) 1 × 10-1
E) 5 × 10-2

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