Calculate E° (cell) for the reaction, 10 Fe3+(aq) + I2(aq) <=> 2 IO3-(aq) + 10 Fe2+(aq) given the reduction potentials:
Fe3+(aq) + e- <=> Fe2+(aq), E° = 0.87 V
2 IO3-(aq) + 10 e- <=> I2(aq), E° = 1.20 V
a. +0.33 V
b. +6.3 V
c. -0.33 V
d. -6.3 V
e. +7.5 V
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