Calculate the theoretical cell potential (E°) of a galvanic cell under standard conditions made up of copper and magnesium (see Part II and Table 1 for more information).
Calculate the theoretical cell potential (E°) of a galvanic cell under standard conditions made up of copper and magnesium (see Part II and Table 1 for more information).
For copper:
Cu+2 + 2e- --> Cu(s) E = 0.34 V
For Magnesium
Mg2+ + 2e- --> Mg(s) E = -2.37 V
so
Mg will oxidize, since it has much lower potential
then
Cu+2 + 2e- --> Cu(s) E = 0.34 V
Mg(s) --> Mg2+ + 2e- E =+-2.37 V
Ecell = Ered + Eox = 0.34 +2.37 = 2.71 V
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