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Consider a galvanic cell based on the following half-reactions.

$${Fe}^{3+} + { e }^{ - }\xrightarrow [ ]{ } \ {Fe}^{2+} \quad\quad {E}^{°} = 0.77\ V$$

$${Sn}^{2+} + 2{ e }^{ - }\xrightarrow [ ]{ } \ Sn \quad\quad {E}^{°} = -0.14\ V$$

Calculate ${ E }_{ cell }^{ ° }$.

A

-0.91 V

B

0.63 V

C

0.91 V

D

1.68 V

Accuracy 0%
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