Given the Table Below Predict the Numerical Value of the Standard

Given the table below predict the numerical value of the standard cell potential for the reaction: 2 Cr(s) + 3 Cu²⁺(aq) → 2 Cr³⁺(aq) + 3 Cu(s)
Half Reaction E° (volts)
(1) Cr³⁺ + 3 e- → Cr   -0.74
(2) Cr³⁺ + e- → Cr²⁺   -0.41
(3) Cr₂O₇^2- + 14 H⁺ + 6 e- → 2 Cr³⁺ + 7 H₂O   1.33
(4) Cu⁺ + e- → Cu   0.52
(5) Cu²⁺ + 2 e- → Cu   0.34
(6) Cu²⁺ + e- → Cu⁺   0.16

A) 2.50 volts
B) 0.417 volts
C) -1.08 volts
D) 1.08 volts
E) -0.40 volts

Correct Answer:

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