4. The galvanic cell is composed of cadmium (E0(Cd2 /Cd) = -0.403 V and chromium (E0(Cr3 /Cd2) = -0.407 V) electrodes.
a) What reaction will occur in the element (T=298 K) if the initial concentrations of Cd2, Cr2, Cr3 are 0.1 mol/l? b) Find the equilibrium constant of this reaction. c) Write the half-reactions at the cathode and anode.

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