Concept explainers
(a)
Interpretation:
The balanced net equation for the titration reaction needs to be determined.
Concept introduction:
The balanced net equation is that equation which follows the law of conservation of mass. In this reaction, the number of atoms of the same elements is the same on both sides of the reaction arrow.
(b)
Interpretation:
The value of
Concept introduction:
The relation between change in standard Gibbs free energy and electrode potential of the cell is represented as follows:
Here, n is the number of electron/s transferred in a reaction, F is Faraday’s constant and
(c)
Interpretation:
The crystal field energy level diagram for the reactants and the products
Concept introduction:
The energy level diagram is used for the representation of energy shell, subshell and orbital which are occupied by the electrons of the atoms.
(d)
Interpretation:
Whether the paramagnetism of the solution increases or decreases as the reaction proceeds needs to be explained.
Concept introduction:
The paramagnetism is defined by the number of unpaired electrons. The paramagnetism of the solution increases with the number of unpaired electrons.
(e)
Interpretation:
The mass percentage of iron in the iron is to be determined. It is given that titration of
Concept introduction:
The number of moles can be calculated from mass and molarity as follows:
Also,
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CHEMISTRY-TEXT
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