
Concept explainers
(a)
Interpretation:
The complex ion, the counter ions, the electronic configuration of the
Concept introduction:
The electrons in the d orbital of a transition metal split into high and low energy orbitals when ligands are attached to it. The energy difference between these two levels depends upon the properties of both metal and the ligands. If the ligand is strong, then splitting will be high and the complex will be low spin. If the ligand is weak, then splitting will be less and the complex will be high spin.
To determine: The complex ion, the counter ions, the electronic configuration of the transition metal and geometry of complex ion for the given coordination compound.
(a)

Answer to Problem 74AE
The complex ion present is
Explanation of Solution
The given compound is
The coordination compound is
The bracket indicates the composition of complex ion; hence, the complex ion present is
The counter ions are
The oxidation state of cobalt is assumed to be
The number of water ligands is
Substitute the values of number of cobalt atoms, water ligands and charge on them in the above equation,
Therefore, oxidation state of cobalt is
Electronic configuration of
The
Therefore, the geometry of the complex ion is octahedral.
(b)
Interpretation:
The complex ion, the counter ions, the electronic configuration of the transition metal and geometry of complex ion for each of the given coordination compounds is to be stated.
Concept introduction:
The electrons in the d orbital of a transition metal split into high and low energy orbitals when ligands are attached to it. The energy difference between these two levels depends upon the properties of both metal and the ligands. If the ligand is strong, then splitting will be high and the complex will be low spin. If the ligand is weak, then splitting will be less and the complex will be high spin.
To determine: The complex ion, the counter ions, the electronic configuration of the transition metal and geometry of complex ion for the given coordination compound.
(b)

Answer to Problem 74AE
The complex ion present is
Explanation of Solution
The dissociation reaction of
The bracket indicates the composition of complex ion hence the complex ion present is
The counter ions are
The oxidation state of silver is assumed to be
The number of
The number of silver atom is
Substitute the values of number of silver atoms,
Therefore, oxidation state of silver is
Electronic configuration of
Therefore, the geometry of the complex ion is tetrahedral.
(c)
Interpretation:
The complex ion, the counter ions, the electronic configuration of the transition metal and geometry of complex ion for each of the given coordination compounds is to be stated.
Concept introduction:
The electrons in the d orbital of a transition metal split into high and low energy orbitals when ligands are attached to it. The energy difference between these two levels depends upon the properties of both metal and the ligands. If the ligand is strong, then splitting will be high and the complex will be low spin. If the ligand is weak, then splitting will be less and the complex will be high spin.
To determine: The complex ion, the counter ions, the electronic configuration of the transition metal and geometry of complex ion for the given coordination compound.
(c)

Answer to Problem 74AE
The complex ion present is
Explanation of Solution
The dissociation reaction of
The bracket indicates the composition of complex ion hence the complex ion present is
The counter ion is
The oxidation state of copper is assumed to be
The number of
The number of
Substitute the values of number of
Therefore, oxidation state of
Electronic configuration of
Therefore, the geometry of the complex is tetrahedral.
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Chapter 21 Solutions
Lab Manual for Zumdahl/Zumdahl/DeCoste¿s Chemistry, 10th Edition
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