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) Cr2O72- + 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