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So in the 7th edition in section 6M there are several questions including 6M.3. which ask you to predict the standard potential of different galvanic cells. In the book there is a tabel containing many of the E/V values which you use plug into the formula Ecell=E(cathode)-E(anode) but in some cases there are no direct E/V values. How do you calculate the standard potential of each half reaction without a key?
If the value for the reverse reaction is given, you can take the negative value, which would give you the oxidation potential for the reaction you need that you can plug in the other equation, Ecell= Ered + Eox
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