Chemistry
Raymond Chang
10th edition
Chapter 19
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Question 3
The purpose of a salt bridge in an
electrochemical cell is
25%
25%
A) to give electrons a path to flow
between the cathode and anode.
B) to allow the reactants to mix so
that reaction can occur.
C) to maintain a balance of charge
between the two half cells and
thus allow a complete circuit.
D) all of the above.
1
2
25%
3
25%
4
Question 5
The reduction of one mole of copper(II)
ions to copper metal requires the
transfer of one Faraday (about 96,500
Coulombs) of charge.
A) True
B) False
50%
50%
1
2
Question 7
The electrochemical potential of a cell
depends on which of the following?
25%
A) The standard reduction
potential for the half-reaction
that occurs at the anode.
B) The standard reduction
potential for the half-reaction
that occurs at the cathode.
C) The concentrations of
species in the cell.
D) All of the above.
1
25%
25%
2
3
25%
4
Question 10
Increasing the concentration of products
in an electrochemical reaction will
decrease the value of the
electrochemical potential for the
reaction.
A) True
B) False
50%
50%
1
2
Question 14
In a galvanic cell
33%
33%
33%
A) oxidation takes
place at the anode.
B) oxidation takes
place at the cathode.
C) none of the above.
1
2
3
Question 18
It is possible to obtain zinc metal by placing
a strip of copper in an aqueous solution of
ZnSO4.
A) True
B) False
50%
50%
1
2