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Electron-Transfer Reactions Cu 2+ (aq) + Zn(s)  Cu(s) + Zn 2+ (aq)

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Presentation on theme: "Electron-Transfer Reactions Cu 2+ (aq) + Zn(s)  Cu(s) + Zn 2+ (aq)"— Presentation transcript:

1 Electron-Transfer Reactions Cu 2+ (aq) + Zn(s)  Cu(s) + Zn 2+ (aq)

2 Half-Reactions:

3 Direct vs. Indirect Electron-Transfer Reactions

4 Electrochemical Cells Cu 2+ (aq) + Zn(s)  Cu(s) + Zn 2+ (aq)

5 Eocell = E o cathode - E o anode

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13 Why are some things good oxidants or reductants?

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16 Standard Cell Potentials: Voltages

17 Relationship Between  G o and E o  G o = -nFE o F = 96.485 kJ/mol

18 V are J/C

19 An electrolytic cell is used to generate 2.4 L of H 2 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?

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