Concentration dependency of cell potentials

So far we have only looked at galvanic cells under standard conditions. Nevertheless cell potentials depend on the concentration of the ions that are in the half cells. E.g. the following overall cell reaction  

The dependence of concentration for the cell potential at 298 K is given hy the Nemst equation (named after the German chemist Hermann Nemst) given as  

We have been informed that a galvanic cell has to following two half cell reactions  

Form a table we have the following reduction potentials corresponding to the following reactions  

As earlier mentioned there has to be a reducing as well as an oxidising reaction and as the overall potential of the cell has to be positive the overall reaction must be  

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Further we looked at galvanic cells where it was possible to extract electrical energy from chemical reactions. We looked into cell potentials and standard reduction potentials which are both central and necessary for the electrochemical calculations. We also looked at concentration dependence of cell potentials and introduced the Nemst-equation stating the combination of the reaction fraction and cell potentials. The use of the Nemst equation was presented through examples where er also saw how the equation may be used to determine equilibrium constants. 

S. Zugmann, M. Fleischmann, M. Amereller, R. M. Gschwind, M. Winter, H. J. Gores, J. Chem. Eng. Data 2011, 56, 4786-4789. Salt diffusion coefficients, concentration dependence of cell potentials, and transference numbers of lithium dilluoromono(oxalato)borate-based solutions. 

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