Hr1 - -0.41 16 Fe(H 2 O 2 6(aq 2e-→ Fe(s 6 H 2 O(l-0.44 17 Fe(H 2 O 3(OH 3(aq H 2 O(l e-→ Fe(H 2 O 4(OH 2(aq OH(aq-0.56 18 CuS(s 2e-→ Cu(s S

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Some Half-Reactions and their Standard Electrode Potentials at 25 o C Oxidizer Reducer E o (volts) 1. F 2 (g) + 2e - -→ 2F - (aq) 2.87 2. Cl 2 (g) + 2e - -→ 2C l - (aq) 1.36 3. O 2 (g)+4H 3 O + (aq) + 4e - -→ 6H 2 O(l) (pH = 0.00) 1.23 4. O 2 (g)+4H 3 O + (aq) + 4e - -→ 6H 2 O(l) (pH = 7.00) 0.81 5. Ag + (aq) + e - -→ Ag(s) 0.80 6. Fe(H 2 O) 3+ 6 (aq) + e - -→ Fe(H 2 O) 2+ 6 (aq) 0.77 7. Cu + (aq) + e - -→ Cu(s) 0.52 8. O 2 (g)+2H 2 O(l) + 4e - -→ 4OH - (aq) (pH = 14.00) 0.40 9. Cu(H 2 O) 2+ 6 +2e - -→ Cu(s)+6H 2 O(l) 0.34 10. Cu(H 2 O) 2+ 6 (aq) + e - -→ Cu + (aq)+6H 2 O(l) 0.17 11. 2 H 3 O + (aq) + 2e - -→ H 2 (g)+2H 2 O(l) (pH = 0.00) 0.00 12. Cu(NH 3 ) 2+ 4 (aq) + 2e - -→ Cu(s)+4NH 3 (aq) - 0.05 13. Pb 2+ (aq) + 2e - -→ Pb(s) - 0.126 14. Sn(H 2 O) 2+ 6 (aq) + 2e - -→ Sn(s)+6H 2 O(l) - 0.136 15. 2 H 3 O + (aq) + 2e - -→ H 2 (g)+2H 2
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Unformatted text preview: -0.41 16. Fe(H 2 O) 2+ 6 (aq) + 2e--→ Fe(s) + 6 H 2 O(l)-0.44 17. Fe(H 2 O) 3 (OH) 3 (aq) + H 2 O(l) + e--→ Fe(H 2 O) 4 (OH) 2 (aq) + OH-(aq)-0.56 18. CuS(s) + 2e--→ Cu(s) + S 2-(aq)-0.76 19. Zn(H 2 O) 2+ 6 (aq) + 2e--→ Zn(s) + 6 H 2 O(l)-0.763 20. 2 H 2 O(l) + 2e--→ H 2 (g) + 2 OH-(aq) (pH = 14.00)-0.83 21. Fe(H 2 O) 4 (OH) 2 (aq) + 2e--→ Fe(s) + 4 H 2 O(l) + 2 OH-(aq)-0.88 22. PbS(s) + 2e--→ Pb(s) + S 2-(aq)-0.95 23. Zn(NH 3 ) 2+ 4 (aq) + 2e--→ Zn(s) + 4 NH 3 (aq)-1.03 24. Na + (aq) + e--→ Na(s)-2.71...
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This note was uploaded on 05/29/2011 for the course CHM 2047 taught by Professor Staff during the Fall '08 term at University of Florida.

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