In a concentration cell the same reactants are present in both the anode and the cathode compartments, but at different concentrations. Calculate the emf of a cell containing 0.040M. Cr³⁺ in one compartment and 1.0M Cr³⁺ in the other if Cr electrodes are used in both.
a. 0.028V
b. 0.249V
c. 0.083V
d. 0.125V