Given that the standard potentials (E°) of Cu2+/Cu and Cu+/Cu are 0.34 V and 0.522 V respectively, the E° of Cu2+/Cu+ is:

Engineering

Chemistry

EMF Calculation and Galvanic Cell

Question

Given that the standard potentials (E°) of Cu²⁺/Cu and Cu⁺/Cu are 0.34 V and 0.522 V respectively, the E° of Cu²⁺/Cu⁺ is:

–0.158 V

–0.182 V

0.182 V

+0.158 V

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$2 \times 0 .34 = E_{1}^{0} + 1 \times 0 .522$

$E_{1}^{0} = 0 .68 - 0 .522 \Rightarrow E_{1}^{0} = 0 .158 V$