Chapter 16 Electrochemistry lecture notes

Chapter 16 Electrochemistry lecture notes - CHAPTER 16 1....

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9/8/10 CHAPTER 16 (pages 776-792) 1. Oxidation and Reduction 2. Galvanic Cells, Half Reactions (E °anode & E°cathode) 3. Standard Reduction Potential (E °) 4. Nernst Equation, and the dependence of Potential on Concentration Relationship between 11
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9/8/10 REDOX REACTIONS MnO2 + 4 HBr MnBr2 + Br2 + 2 H2O 3 H2S +  2 NO3–  +  2 H+  3 S + 2 NO + 4 H2O 22
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9/8/10 OBSERVED REDOX PROCESSES 33
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9/8/10 GALVANIC CELLS 44
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9/8/10
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9/8/10 INERT ELECTRODES 66
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9/8/10 STANDARD REDUCTION POTENTIALS 77
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9/8/10 88
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9/8/10 MEASURING STANDARD POTENTIALS 99
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9/8/10 CALCULATING STANDARD CELL POTENTIAL Al( s ) + NO3−( aq ) + 4 H+( aq ) Al3+( aq ) + NO( g ) + 2 H2O( l ) 1010
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9/8/10 ADDITIONAL EXAMPLE Fe( s ) + Mg2+( aq ) Fe2+( aq ) + Mg( s ) 1111
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9/8/10 ox:    Fe( s   Fe2+( aq ) + 2  e−      E  = +0.45 V   red:   Pb2+( aq ) + 2  e−   +   Pb( s )      E  = −0.13 V   tot:   Pb2+( aq ) + Fe( s  Fe2+( aq ) + Pb( s )      E  = +0.32 V  
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9/8/10 ELECTROMOTIVE POTENTIAL 1313
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Chapter 16 Electrochemistry lecture notes - CHAPTER 16 1....

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