A voltaic electrochemical cell is constructed in which the anode is a Mn2+ |Mn half cell...
A voltaic electrochemical cell is constructed in which the
anode is a Mn2+
|Mn half cell and the cathode is
a Pb2+ |Pb half cell.
The half-cell compartments are connected by a salt bridge.
Write the anode reaction.
Write the cathode reaction.
Write the net cell reaction.
In the external circuit, electrons migrate _____fromto the
Mn2+ | Mn electrode _____fromto the
Pb2+ |Pb
electrode.
In the salt bridge, anions migrate _____fromto the
Mn2+ | Mn compartment _____fromto the
Pb2+ |Pb
compartment.
Homework Answers
Anode is where oxidation takes place and at
cathode reductiontakes place Half reaction follows
Mn(s) ----> Mn2+(aq) +2e- Anode [oxidation]
Pb2+(aq) +2e- ----> Pb(s) Cathode[reduction]
net cell reation
Mn(s) + Pb2+(aq) ----> Mn2+(aq) + Pb(s)
In the external circuit electrons migrate from Mn2+|Mn
[anode]
to Pb2+|Pb [cathode] electrode
In salt bridge anions migrate fro Pb2+|Pb electrode to
Mn2+|Mn
electrode
thank you
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