125. Make a diagram, write the electronic equations of electrode processes and calculate the EMF of a galvanic cell consisting of cadmium and magnesium plates immersed in solutions of their salts with a concentration of [Mg2]=[Cd2]=0.01 mol/l? Will the value of the emf change if the concentration of each of the ions is lowered to 0.0001 mol/l? Take f=1 for the ion activity coefficient.
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