Zn/Cu Electrochemical Cell
Anode: Zn(s) ? Zn2+(aq) + 2e- Eo = +0.76 V
Cathode, positive, sink for electrons
Anode, negative, source of electrons
What is Eo for the Zn/Cu cell (Daniel’s cell) ??
Eo = Eo(anode) + Eo(cathode) = 0.76 + 0.34 = +1.10 V
Net: Cu2+(aq) + Zn(s) ? Zn2+(aq) + Cu(s)
Cathode: Cu2+(aq) + 2e- ? Cu(s) Eo = +0.34 V