Quick Review Notes

Quick Review Notes - 1. The solid anode electrode is Cd 2....

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1. The solid anode electrode is Cd 2. The anode reaction is Cd - 2 e -1 Cd +2 3. The solid cathode electrode in this cell is Sn 4. A very simplified cell diagram may be written as Cd|Cd +2 ||Sn +2 |Sn 5. The E o for this battery is 0.26V 6. The anode reaction in the dry cell is Zn - 2e - Zn +2 7. The cathode electrode in the dry cell battery is a graphite rod 8. The modern and more advanced dry cell battery is made unique by the addition of KOH 9. The anode reaction is Pb + SO 4 -2 PbSO 4 + 2e - 10. The cathode reaction is PbO 2 + 4H + + SO 4 -2 + 2e - PbSO 4 + 2H 2 O 11. The density of the H 2 SO 4 acid solution decreases 12. If a Pb/acid battery is severely overcharged, a likely by-product produced is H 2 13. Six Pb/acid cells arranged in a series have an E battery of 12V 14. Six Pb/acid cells arranged in a parallel have an E battery of 6V 15. The anode reaction is Zn (aq) +2 + 2e - Zn (s) is False 16. The anode is marked + is True 17. The concentration of Zn +2 in the solution remains the same is True 18. The most effective metal to use as a sacrificial anode is Mg 19. The important “new” battery in which oxidation does not exactly take place at the anode is the Li-ion battery 20. A typical li-ion cell has an E o of 1.50V 21. In a typical li-ion cell, the electrolyte is organic
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This note was uploaded on 04/14/2011 for the course CHEM 135 taught by Professor Aronson during the Spring '02 term at Kettering.

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Quick Review Notes - 1. The solid anode electrode is Cd 2....

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