5 Upload to this section your answers to the activities done in class. 1. For the scenario where you have the following reaction going: O + 1e <-> R. Determine the concentration ratio CR/Co for the following cases using the Nernst equation: A. At time zerobefore you apply any potential B. When the applied potential is the formal potential E = Eº C. When the potential is 0.12V more negative than E° (E = E° -0.12V) Please also add the graphical representation of the concentration profile of O and R as a function of the applied potential and as a function of the electrode distance (plot of C vs E, plot of C vs x).

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