Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter19: Principles Of Chemical Reactivity: Electron Transfer Reactions
Section: Chapter Questions
Problem 8PS: A voltaic cell is constructed using the reaction Mg(s) + 2H+(aq) Mg2+(aq) + H2(g) (a) Write...
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Transcribed Image Text:A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartments are connected
by a salt bridge.
Pb2+(aq) + Mn(s)
Pb(s) + Mn2+(aq)
The anode reaction is:
The cathode reaction is:
+
+
In the external circuit, electrons migrate
e the Mn|Mn2+ electrode
e the Pb|Pb2+ electrode.
In the salt bridge, anions migrate
e the Pb|Pb²+ compartment
e the Mn|Mn2+ compartment.
+
Transcribed Image Text:A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartments are connected
by a salt bridge.
A voltaic cell is constructed in which the anode is a Cu|Cu2+ half cell and the cathode is a Fe2+|Fe3+ half cell.
The half-cell compartments are connected by a salt bridge.
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave
it blank.)
2Ag+(aq) + Cu(s)
2Ag(s) + Cu2+(aq)
>
The anode reaction is:
The anode reaction is:
+
+
The cathode reaction is:
+
+
The cathode reaction is:
+
+
The net cell reaction is:
+
+
In the external circuit, electrons migrate
e the Cu|Cu2+ electrode
e the Ag|Ag+ electrode.
In the external circuit, electrons migrate
e the Cu|Cu2+ electrode
e the Fe2+|Fe3+ electrode.
In the salt bridge, anions migrate
e the Cu|Cu2+ compartment
o the Ag|Ag* compartment.
In the salt bridge, anions migrate
e the Fe2+|Fe3+ compartment
e the Cu|Cu2+ compartment.
+
1
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