Lecture%2018%20March%2023%20%28Chapter%2021%20Electrochemistry%29-1

Lecture%2018%20March%2023%20%28Chapter%2021%20Electrochemistry%29-1

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Unformatted text preview: Chapter 21 -- Electrochemistry Lecture 18 March 23, 2009 (Selected ) Standard Reduction Potentials at 25 o C Reduction Half Reaction E o (V) F 2 (g) + 2e- 2F- (aq) 2.87 Cl 2 (g) + 2e- 2Cl- (aq) 1.36 Ag + (aq) + e- Ag (s) 0.80 Cu 2+ (aq) + 2e- Cu (s) 0.34 2H 3 O + (aq) + 2e- H 2 (g) + 2H 2 O(l) 0 Pb 2+ (aq) + 2e- Pb (s) -0.13 Fe 2+ (aq) + 2e- Fe (s)-0.45 Zn 2+ (aq) + 2e- Zn (s)-0.76 Al 3+ (aq) + 3e- Al (s)-1.66 Li + (aq) + e- Li (s) -3.04 Electrochemical Series: The higher the position of a species on the left side of an equation in a standard reduction potential table, the greater its strength as an oxidizing agent. For example, in the table on the previous slide, F 2 is the strongest oxidizing agent (has the greatest tendency to be reduced.)oxidizing agent (has the greatest tendency to be reduced....
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This note was uploaded on 12/15/2010 for the course PHYS 0001 taught by Professor Nayak during the Spring '10 term at Rensselaer Polytechnic Institute.

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Lecture%2018%20March%2023%20%28Chapter%2021%20Electrochemistry%29-1

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