
Concept explainers
(a)
Interpretation:
The half-cell reactions and the overall reactions in the given cell has to be calculated.
Concept Introduction:
Nernst equation is one of the important equation in
Where,
n is the number of electrons involved in a reaction
At room temperature
The relation between electrode potential and equilibrium constant: cell potential and equilibrium constant are related by the given equation.
Where,
The standard electrode potential of a cell
(a)

Answer to Problem 18.102QP
The half-cell reactions are,
The overall reaction,
Explanation of Solution
To find the completely balanced chemical equation
The overall cell reaction can be written as given below,
Overall reaction
(b)
Interpretation:
The equilibrium constant for the reaction has to be calculated in accordance with the given conditions.
Concept Introduction:
Nernst equation is one of the important equation in electrochemistry. In Nernst equation the electrode potential of a cell reaction is related to the standard electrode potential, concentration or activities of the species that is involved in the chemical reaction and temperature.
Where,
At room temperature
The relation between electrode potential and equilibrium constant: cell potential and equilibrium constant are related by the given equation.
Where,
The standard electrode potential of a cell
(b)

Answer to Problem 18.102QP
The equilibrium constant at
Explanation of Solution
To find the
The standard cell potential can be calculated as given below
To calculate the equilibrium constant.
The equilibrium constant and the electrode potential is related by the given equation.
On rearranging we get,
Hence,
(c)
Interpretation:
The cell potential has to be calculated in accordance with the given conditions.
Concept Introduction:
Nernst equation is one of the important equation in electrochemistry. In Nernst equation the electrode potential of a cell reaction is related to the standard electrode potential, concentration or activities of the species that is involved in the chemical reaction and temperature.
Where,
F is the Faraday constant
At room temperature
The relation between electrode potential and equilibrium constant: cell potential and equilibrium constant are related by the given equation.
Where,
The standard electrode potential of a cell
(c)

Answer to Problem 18.102QP
The cell potential, when the concentration of
Explanation of Solution
To record the given data
The concentration of
The concentration of
The concentration of
Temperature
To find the cell voltage when the concentration
The
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Chapter 18 Solutions
Chemistry: Atoms First
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