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Harris Chapter 15 Review 1
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T/F pH electrodes sensitivity to H+ is not based on Redox reactions
 
True
 
False
T/F - Ion selective electrodes are unaffected by color or turbidity of the solution
 
True
 
False
Which of the following is not the characteristic of ion selective electrodes
 
Narrow concentration range
 
inexpensive
 
Operates in a wide range of temperatures
 
Simple to use
Which one of the following is the strongest reducing agent
 
I-
 
Br-
 
F-
 
Cl-
In the standard notation for a voltaic cell, the double vertical line "||" represents:
 
a salt bridge
 
a phase boundary
 
gas electrode
 
a standard hydrogen electrode
In voltaic cells, such as those diagrammed in your text, the salt bridge _______ .
 
allows charge balance to be maintained in the cell
 
is not necessary in order for the cell to work
 
acts as a mechanism to allow mechanical mixing of the soluti
 
is tightly plugged with firm agar gel through which ions can
The half-reaction that occurs at the anode during the electrolysis of molten sodium bromide is:
 
2 Br- <===>Br2 + 2 e-
 
Br2 + 2 e-<===> 2 Br-
 
2 H2O <===> 2 OH- + H2
 
Na <===> Na+ + e-
Which of the following statements is FALSE?
 
All voltaic (galvanic) cells involve the use of electricity
 
Oxidation and reduction half-reactions occur at electrodes i
 
Reduction occurs at the cathode.
 
Oxidation occurs at the anode.
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