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Redox and Electrochem
Redox and Electrochem
14
Chemistry
Undergraduate 1
07/09/2010
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Term
spontaneous rxns
 Definition
-produce electrical energy
-galvanic cells
-EMF pos
Term
nonspontaneous rxns
 Definition
-use electrical energy
-electrolytic cells
-EMF neg
Term
oxidation occurs at
 Definition
anode
Term
reduction occurs at
 Definition
cathode
Term
 electrons flow from
 Definition
anode to cathode
Term
cell diagram
 Definition
-reactants/products listed from left to right
-anode|anode soln||cathode soln|cathode
Term
Faradays constant
 Definition
96487 C/mol e-
Term
anode of galvanic cell
 Definition
negative
Term
anode of electrolytic cell
 Definition
positive
Term
reduction potential (Eo)
 Definition
tendency to be reduced, acquire electrons
Term
EMF
 Definition
Ered+Eox
Term
Change in G
 Definition
-nFEcell (n = moles of electrons) (careful with units)
Term
Nernst Equation
 Definition
Ecell=Estandardcell-(RT/nF)(lnQ)
Term
change in G (other)
 Definition
-RTlnK
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