Topic+5 - TOPIC 5: INORGANIC REDOX CHEMISTRY AND...

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Unformatted text preview: TOPIC 5: INORGANIC REDOX CHEMISTRY AND ELECTROCHEMISTRY Spring 2010 1 TOPIC 5 OBJECTIVES Discuss the fundamental processes of oxidation and reduction which drive electrochemical reactions. Outline the types of electrochemical cells with a discussion of the features of each cell with the inclusion of cell notation. Include a thorough overview of electrochemical calculations at standard and nonstandard states including calculations for galvanic and electrolytic cells. Provide an overview of the graphical representations of electrochemical processes. 2 REDOX REACTIONS MnO 2 + 4 HBr MnBr 2 + Br 2 + 2 H 2 O 3 H 2 S + 2 NO 3 + 2 H + 3 S + 2 NO + 4 H 2 O 3 OBSERVED REDOX PROCESSES 4 GALVANIC CELLS OR VOLATAIC CELLS 5 6 INERT ELECTRODES 7 STANDARD HYDROGEN ELECTRODE (SHE) 8 MEASURING STANDARD POTENTIALS 9 Half-Reaction E (volts) Li + (aq) + e- = Li (s) - 3.04 K + (aq) + e- = K (s) - 2.92 Ca 2+ (aq) + 2e- = Ca (s) - 2.76 Na + (aq) + e- = Na (s) - 2.71 Mg 2+ (aq) + 2e- = Mg (s) - 2.38 Al 3+ (aq) + 3e- = Al (s) - 1.66 2 H 2 O (liq) + 2e- = H 2(g) + 2 OH- (aq)- 0.83 Zn 2+ (aq) + 2e- = Zn (s) - 0.76 Cr 3+ (aq) + 3e- = Cr (s) - 0.74 Fe 2+ (aq) + 2e- = Fe (s) -...
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This note was uploaded on 09/12/2011 for the course CHEM 1311 taught by Professor Soper during the Spring '08 term at Georgia Institute of Technology.

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Topic+5 - TOPIC 5: INORGANIC REDOX CHEMISTRY AND...

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