Question

Calculate the equilibrium constant for the reaction below at 25 C,
Co(s) + 2 Cr3+(aq) Co2+(aq) + 2 Cr2+(aq)
given the following thermodynamic information.
Co2+(aq) + 2 e- Co(s) E = -0.28 V
Cr3+(aq) + e- Cr2+(aq) E = -0.41 V
A.4.0 10-5
B.2.5 104
C.1.0 105
D.1.2 105
E.1.3 105

Answer

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