Question 1
A galvanic cell employs the reaction
Ni2+(aq) + Cu(s) → Ni(s) + Cu2+(aq)
and KNO
3 is the salt used in the salt bridge. During the course of the reaction
◦ KNO
3 leaves the salt bridge and enters the anode compartment.
◦ KNO
3 leaves the salt bridge and enters the cathode compartment.
◦ K
+ leaves the salt bridge and enters the anode compartment.
◦ K
+ leaves the salt bridge and enters the cathode compartment.
Question 2
What is the shorthand notation that represents the following galvanic cell reaction?
Fe(s) + Cu(NO3)2(aq) → Fe(NO3)2(aq) + Cu(s)
◦ Fe(
s) ∣ Fe
2+(
aq) ∣∣ Cu
2+(
aq) ∣ Cu(
s)
◦ Fe(
s) ∣ NO
3-(
aq) ∣∣ NO
3-(
aq) ∣ Cu(
s)
◦ Cu(
s) ∣ Cu(NO
3)
2(
aq) ∣∣ Fe(NO
3)
2(
aq) ∣ Fe(
s)
◦ Cu(
s) ∣ Cu
2+(
aq) ∣∣ Fe
2+(
aq) ∣ Fe(
s)
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