
(a)
Interpretation:
To find whether the value of E increases, decreases or no change for the given action.
Concept introduction:
- The substance that easily be reduced in a reaction is represented as an oxidizing agent. For metal cations, a good oxidizing agent can be determined by the standard reduction potential values.
- Half-cell: In the
electrochemical cell, both oxidation and reduction occurs. Oxidation occurs at the anode and reduction occurs at the cathode - Standard electrode potential of cell is defined as the difference of reduction potential at cathode to the reduction potential at anode.
- For the cathode and anode reactions, the values are taken from the standard reduction potential table. The standard cell potential is calculated by taking the difference between the standard reduction potential values of the cathode and anode.
E0cell = E0cathode − E0anode
- Ecell = E0−0.0592 VnlogQwhere, Q is the reactant quotient = [anode][cathode]
Ecell = Electrochemical cell potential E0 = Standard electrochemical cell potentialn = number of electrons passed from anode to cathode
(b)
Interpretation:
To find whether the value of E increases, decreases or no change for the given action.
Concept introduction:
- The substance that easily be reduced in a reaction is represented as an oxidizing agent. For metal cations, a good oxidizing agent can be determined by the standard reduction potential values.
- Half-cell: In the electrochemical cell, both oxidation and reduction occurs. Oxidation occurs at the anode and reduction occurs at the cathode
- Standard electrode potential of cell is defined as the difference of reduction potential at cathode to the reduction potential at anode.
- For the cathode and anode reactions, the values are taken from the standard reduction potential table. The standard cell potential is calculated by taking the difference between the standard reduction potential values of the cathode and anode.
E0cell = E0cathode − E0anode
- Ecell = E0−0.0592 VnlogQwhere, Q is the reactant quotient = [anode][cathode]
Ecell = Electrochemical cell potential E0 = Standard electrochemical cell potentialn = number of electrons passed from anode to cathode
(c)
Interpretation:
To find whether the value of E increases, decreases or no change for the given action.
Concept introduction:
- The substance that easily be reduced in a reaction is represented as an oxidizing agent. For metal cations, a good oxidizing agent can be determined by the standard reduction potential values.
- Half-cell: In the electrochemical cell, both oxidation and reduction occurs. Oxidation occurs at the anode and reduction occurs at the cathode
- Standard electrode potential of cell is defined as the difference of reduction potential at cathode to the reduction potential at anode.
- For the cathode and anode reactions, the values are taken from the standard reduction potential table. The standard cell potential is calculated by taking the difference between the standard reduction potential values of the cathode and anode.
E0cell = E0cathode − E0anode
- Ecell = E0−0.0592 VnlogQwhere, Q is the reactant quotient = [anode][cathode]
Ecell = Electrochemical cell potential E0 = Standard electrochemical cell potentialn = number of electrons passed from anode to cathode

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Chapter 18 Solutions
Chemistry: Atoms First V1
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