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Electron-Transfer Reactions
Cu2+(aq) + Zn(s) Cu(s) + Zn2+(aq)
Cu2+(aq) + Zn(s) Cu(s) + Zn2+(aq)
Half-Reactions:
Direct vs. Indirect Electron-Transfer Reactions
Electrochemical Cells
Cu2+(aq) + Zn(s) Cu(s) + Zn2+(aq)
Eocell = Eocathode - Eo
anode
Why are some things good oxidants or reductants?
Standard Cell Potentials: Voltages
Relationship Between Go and Eo
Go = -nFEo
F = 96.485 kJ/mol
V are J/C
An electrolytic cell is used to generate 2.4 L of H2 gas from water at a pressure of 1 atm and 290 K, running at a voltage of +2.6 V and 14 Amps. How long does it take?