(a) Interpretation: The name and the formula complex ion consist of Cr 3 + as the central ion and two NH 3 molecules and four Cl- ions as ligands should be determined. Concept introduction: The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound. The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O 2 - has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex. When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Question

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Answer 1

Question

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

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Answer 2

Question

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

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Answer 3

Question

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

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Answer 4

Question

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

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Answer 5

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Answer 6

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Answer 7

Chapter 24, Problem 1E

Interpretation Introduction

(a)

Interpretation:

The name and the formula complex ion consist of Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Answer 8

Expert Solution

Answer to Problem 1E

The formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Answer 9

Expert Solution

Answer 10

Expert Solution

Answer 11

Expert Solution

Answer 12

Explanation of Solution

The complex has Cr³+ as the central ion and two NH₃ molecules and four Cl- ions as ligands surrounding the central ion.NH₃molecules are neutral, and four Cl-ions carry -1 charge each. The oxidation number of the central ion is +3. The net charge of the complex is -1

3−4=−1

Therefore, the formula of the complex is [CrCl4(NH3)2]− and the name of the complex is diamine-tetrachloro-chromate(III) ion.

Answer 13

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Answer 14

Interpretation Introduction

(b)

Interpretation:

The formula and name of a complex which consist of iron(III) with coordination number of 6 and CN- as ligands should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Answer 15

Expert Solution

Answer to Problem 1E

The formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Answer 16

Expert Solution

Answer 17

Expert Solution

Answer 18

Expert Solution

Answer 19

Explanation of Solution

The complex has Iron as the central ion and six CN- ions as ligands surrounding the central ion.

Therefore, the formula of the complex is [Fe(CN)6]−3 and the name of the complex is hexacyanoferrate (III) ion.

Answer 20

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Answer 21

Interpretation Introduction

(c)

Interpretation:

The name and the formula of a coordination compound consists of given complex ions: one a complex contain Cr(III) with ethylenediamine (en) having coordination number 6 and second, a complex contain Ni(II) with CN- having coordination number should be determined.

Concept introduction:

The coordination number of any complex is established by the total number of ions or atoms proximately surrounding or nearest to the central atom in a crystal or compound.

The oxidation number of an atom is equivalent to the charge on the ion, e.g. Na+ has the oxidation number of +1 and O²- has -2. In a molecule or compound, it is the sum of the oxidation numbers of its component atoms. The total charge of the ligands is deducted from the overall charge of the coordinate complex.

When any complex is named, the ligands are named foremost, in the alphabetical order, and the metal atom or ion is named afterward. Conversely, in the chemical formula, the metal atom or ion is marked before the ligands.

Answer 22

Expert Solution

Answer to Problem 1E

The formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).

Answer 23

Expert Solution

Answer 24

Expert Solution

Answer 25

Expert Solution

Answer 26

Explanation of Solution

In the first complex, ethylenediamine is a neutral ligand. Thus, for a complex of Cr (III) containing three en the charge from ligands will be0. Combined with a +3-oxidation state metal, this complex will have a charge of +3 and will, therefore, be the cationic part of the double complex is [Cr(en)₃]⁺3.

In the Ni (II) complex, as mentioned above, each CN will contribute a charge of -1 giving the tetracyano complex a charge of -4 from the ligands. This, with the +2 oxidation on nickel gives the complex a net negative charge -2 making it the anionic part of the double compound with the formula [NiCN₄]2^-.

Therefore, the formula of the complex is [Cr(en)3]2[Ni(CN)4]3 and the name of the complex is tris(ethylenediamine)chromium (III) tetracyano nickelate (II).