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?