(a)
Interpretation:
Equations for the cell reactions that occur in the voltaic cells (1) and (2) should be written.
Concept introduction:
In amalgam electrode, metal-amalgam is in contact with a solution containing its own ions. The activities of highly reactive metals like first row elements are difficult to measure in aqueous solutions. So their activity is reduced by diluting with mercury.
(b)
Interpretation:
The value of ΔrG for the cell reactions written in part (a) should be determined.
Concept introduction:
From the electrode potential of the cell, the value of ΔrG can be calculated as follows:
Here, z is number of electrons transferred in a reaction, F is Faraday’s constant and
(c)
Interpretation:
The overall equation obtained by combining the equation of part (a) should be written. And ΔrG0 for the overall reaction should be established.
Concept introduction:
For a combination of reaction.
Where, n is the number of species and
(d)
Interpretation:
The value of E0celland E0Na+/Nafor the overall reaction should be determined.
Concept introduction:
From the electrode potential of the cell, the value of ΔrG can be calculated as follows:
Here, z is number of electrons transferred in a reaction, F is Faraday’s constant and
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General Chemistry: Principles and Modern Applications - With Solutions Manual and Modified MasteringChemistry Code
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