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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074
BuyFind

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781337399074

Solutions

Chapter
Section
Chapter 22.4, Problem 22.2CYU
Textbook Problem

(a) Determine the metal’s oxidation number and coordination number in (i) K3[Co(NO2)6] and in (ii) Mn(NH3)4Cl2.

(b) Determine the oxidation number and coordination number of cobalt in the complex NH4[Co(EDTA)].

Expert Solution

(a)

Interpretation Introduction

Interpretation: The oxidation number and coordination number of the given compounds has to be determined.

Concept introduction:

  • Coordination compounds: The compounds having coordination covalent bonds which form when metal ions react with polar molecules or anions.

    Chemistry & Chemical Reactivity, Chapter 22.4, Problem 22.2CYU , additional homework tip  1

  • Monodentate ligand: ligands which donate only one pair of electrons to form bond with metal. It only makes one bond with metal.

    Examples: Cl,I

  • Polydentate ligand forms two or more coordination bond with metal ions to form a complex.

    Example: EDTA

  • Coordination number: The total number of ligands that forms bond with the metal atom.

    Coordination number of [Pt(NH3)2(Cl)2] is 4

  • Oxidation number of a central atom in a complex is defined as the charge it would carry if all the ligands are removed along wih the electron pairs that are shared with the central atom

Explanation of Solution

In the given compound K3[Co(NO2)6] the central metal atom cobalt was bonded with six NO2 ligands. Therefore the coordination number of the compound is 6.

Oxidation number of central metal atom Co is +3

K(3×+1)3[Cox(NO2)(6×1)6]0OxidationnumberofCo=x=+63 =+3

Expert Solution

(b)

Interpretation Introduction

Interpretation: The oxidation number and coordination number of cobalt in the given complex has to be determined.

Concept introduction:

  • Coordination compounds: The compounds having coordination covalent bonds which form when metal ions react with polar molecules or anions.

    Chemistry & Chemical Reactivity, Chapter 22.4, Problem 22.2CYU , additional homework tip  2

  • Monodentate ligand: ligands which donate only one pair of electrons to form bond with metal. It only makes one bond with metal.

    Examples: Cl,I

  • Polydentate ligand forms two or more coordination bond with metal ions to form a complex.

    Example: EDTA

  • Coordination number: The total number of ligands that forms bond with the metal atom.

    Coordination number of [Pt(NH3)2(Cl)2] is 4

  • Oxidation number of a central atom in a complex is defined as the charge it would carry if all the ligands are removed along wih the electron pairs that are shared with the central atom

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Chapter 22 Solutions

Chemistry & Chemical Reactivity
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Ch. 22.4 - (a) What is the formula of a complex ion composed...Ch. 22.4 - (a) Determine the metals oxidation number and...Ch. 22.4 - Name the following coordination compounds. (a)...Ch. 22.5 - What types of isomers are possible for the...Ch. 22.6 - For each of the following complex ions, give the...Ch. 22.7 - 1. The complex [Co(NH3)5OH]2+ has an absorption...Ch. 22.7 - What are the electron configurations of Cu(g),...Ch. 22.7 - Copper has a face-centered cubic unit cell. If...Ch. 22.7 - Assuming that Cu2+ ions in solution are the active...Ch. 22.7 - If a patient is given 10.0 mg of cisplatin, what...Ch. 22.7 - What is the systematic name for cisplatin?Ch. 22.7 - How are the d electrons of Pt distributed in a...Ch. 22.7 - What are the electron configurations for Nd and...Ch. 22.7 - The lanthanide elements form ionic compounds, with...Ch. 22.7 - The compound (NH4)2Ce(NO3)6 is a widely used...Ch. 22.7 - Cerium(IV) oxide is used in catalytic converters...Ch. 22 - Identify, based on the position in the periodic...Ch. 22 - Identify, based on the position in the periodic...Ch. 22 - Use the periodic table to identify the elements in...Ch. 22 - Use the periodic table to identify the elements...Ch. 22 - Identify the following as either chemical or...Ch. 22 - Iron is the most abundant transition element in...Ch. 22 - Identity among the transition metals: (a) the most...Ch. 22 - Identify among the transition metals: (a) the...Ch. 22 - Give the electron configuration for each of the...Ch. 22 - Identify two transition metal cations with each of...Ch. 22 - Identify a cation of a first series transition...Ch. 22 - Match up the isoelectronic ions on the following...Ch. 22 - The lanthanide contraction is given as an...Ch. 22 - Describe how the atomic radii of the transition...Ch. 22 - What is the most common form that iron is found in...Ch. 22 - In the reaction...Ch. 22 - In the pyrometallurgy of iron, what two species...Ch. 22 - Lime (CaO) is usually added to the blast furnace...Ch. 22 - Which of the following ligands is expected to be...Ch. 22 - One of the following nitrogen compounds or ions is...Ch. 22 - Give the name or structural formula for each of...Ch. 22 - Give the name or structural formula for each of...Ch. 22 - Give the oxidation number of the metal ion in each...Ch. 22 - Give the oxidation number of the metal ion in each...Ch. 22 - Give the formula of a complex constructed from one...Ch. 22 - Give the formula of a complex constructed from one...Ch. 22 - Write formulas for the following ions or...Ch. 22 - Write formulas for the following ions or...Ch. 22 - Name the following ions or compounds. (a)...Ch. 22 - Name the following ions or compounds. (a)...Ch. 22 - Give the name or formula for each ion or compound,...Ch. 22 - Give the name or formula for each ion or compound,...Ch. 22 - A coordination compound has the formula...Ch. 22 - What types of isomerism (geometric isomerism,...Ch. 22 - Draw all possible geometric isomers for each of...Ch. 22 - In which of the following complexes are geometric...Ch. 22 - Determine whether the following complexes have a...Ch. 22 - Four geometric isomers are possible for...Ch. 22 - According to ligand field theory, what is the...Ch. 22 - Which of the following statements about ligand...Ch. 22 - In an octahedral complex, the d orbitals split...Ch. 22 - In a square planar complex which d orbital is at...Ch. 22 - The following are low-spin complexes. Use the...Ch. 22 - The following are high-spin complexes. Use the...Ch. 22 - Determine the number of unpaired electrons in...Ch. 22 - Determine the number of unpaired electrons in the...Ch. 22 - For the high-spin complex [Fe(H2O)6SO4 identify...Ch. 22 - For the low-spin complex [Co(en)(NH3)2Cl2]ClO4,...Ch. 22 - The anion [NiCl4]2 is paramagnetic, but when CN...Ch. 22 - An aqueous solution of iron(II) sulfate is...Ch. 22 - In water, the titanium(III) ion, [Ti(H2O)6]3+, has...Ch. 22 - In water, the chromium(II) ion, [Cr(H2O)6]2+,...Ch. 22 - Describe an experiment that would determine...Ch. 22 - Which of the following high spin complexes has the...Ch. 22 - How many unpaired electrons are expected for...Ch. 22 - Excess silver nitrate is added to a solution...Ch. 22 - Which of the following complex ions is (are)...Ch. 22 - Which of the following complex ions containing the...Ch. 22 - How many geometric isomers are possible for the...Ch. 22 - For a tetrahedral complex of a metal in the first...Ch. 22 - A transition metal coordination compound absorbs...Ch. 22 - For the low-spin coordination compound...Ch. 22 - For the high-spin coordination compound...Ch. 22 - A platinum-containing compound, known as Magnuss...Ch. 22 - Early in the 20th century, coordination compounds...Ch. 22 - Give the formula and name of a square-planar...Ch. 22 - Give the formula of the coordination complex...Ch. 22 - How many geometric isomers of the complex ion...Ch. 22 - Diethylenetriamine (dien) is capable of serving as...Ch. 22 - From experiment, we know that [CoF6]3 is...Ch. 22 - Three geometric isomers are possible for...Ch. 22 - The square-planar complex Pt(en)Cl2 has chloride...Ch. 22 - The complex [Mn(H2O)6]2+ has five unpaired...Ch. 22 - Experiments show that K4[Cr(CN)6] is paramagnetic...Ch. 22 - Give a systematic name or the formula for the...Ch. 22 - When CrCI3 dissolves in water, three different...Ch. 22 - The complex ion [Co(CO3)3]3, an octahedral complex...Ch. 22 - The glycinate ion, H2NCH2CO2, formed by...Ch. 22 - Draw structures for the five possible geometric...Ch. 22 - Nickel and palladium both form complexes of the...Ch. 22 - The transition metals form a class of compounds...Ch. 22 - Cerium, as noted in Applying Chemical Principles:...Ch. 22 - Neodymium is a component of powerful magnets. (a)...Ch. 22 - Two different coordination compounds containing...Ch. 22 - Nitinol, a nickel-titanium alloy, is used in...Ch. 22 - In this question, we explore the differences...

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