249. Indicate the direction of movement of electrons in a galvanic cell, using the values of electrode potentials. Write the equations of the anodic and cathodic processes, the total ionic and molecular reaction equations. Calculate the emf; if the concentration of the solution is not indicated, use the value of the standard potential (table 3 of the appendix)
249. Pb | Pb(NO3)2 || Cd(NO3)2, 0.1M | CD

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