Chemistry
Chemistry
12th Edition
ISBN: 9780078021510
Author: Raymond Chang Dr., Kenneth Goldsby Professor
Publisher: McGraw-Hill Education
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Chapter 23, Problem 23.17QP

(a)

Interpretation Introduction

Interpretation: The formulae for each of the given systematic names to be predicted.

Concept Introduction:

The cation is named before the anion.

Within a complex ion, the Ligands are arranged in an alphabetical order followed by the metal ion name. The anionic Ligand should ends with a letter –o, the neutral Ligand are called by the molecules (some common name for some exception).

When more Ligands are present, Greek prefixes like di, tri, tetra, penta, and hexa to specify their number.

The oxidation number of the metal is represented in roman numerals immediately following the metal ion name.

If the complex ion is an anion, the metal name should end with –ate.

To Identify: The formulae for each of the given systematic names to be predicted.

(a)

Expert Solution
Check Mark

Answer to Problem 23.17QP

The formula is [Zn(OH)4]2

Explanation of Solution

Predict the formula of tetrahydroxozincate(II).

1)Theligands                                      ;   2)oxidationstateofZnis:+2.tetrahydroxorepresentedas(OH)4.ZincaterepresentedasZn3)consider,[Zn(OH)4]xoverall charge of complex ion = x   ;   oxidation number of Zn =+2charge of (OH)ligand = (-1)2 + (-4)  =   x-2 = xThus , the formula is [Zn(OH)4]2.

The formula is [Zn(OH)4]2. The overall charge of the complex ion is (2),because the Ligand hydroxo has a charge of (1).

(b)

Interpretation Introduction

Interpretation: The formulae for each of the given systematic names to be predicted.

Concept Introduction:

  1. a) The cation is named before the anion.
  2. b) Within a complex ion, the Ligands are arranged in an alphabetical order followed by the metal ion name. The anionic Ligand should ends with a letter –o, the neutral Ligand are called by the molecules (some common name for some exception).
  3. c) When more Ligands are present, Greek prefixes like di, tri, tetra, penta, and hexa to specify their number.
  4. d) The oxidation number of the metal is represented in roman numerals immediately following the metal ion name.
  5. e) If the complex ion is an anion, the metal name should end with –ate.

To Identify: The formulae for each of the given systematic names to be predicted.

(b)

Expert Solution
Check Mark

Answer to Problem 23.17QP

The formula is [Cr(H2O)5Cl]Cl2

Explanation of Solution

Predict the formula of penta-aquachlorochromium(III) chloride.

1)Theligands                                       ;   2)oxidationstateofCris:+3.penta-aquarepresentedas(H2O)5chlororepresentedasCl.3)Consider,[Cr(H2O)5Cl]xClxoverall charge of complex ion = x ;       oxidation number of Cr =+3charge of (H2O)ligand = (0)          ;       charge of (Cl)ligand = (-1)3 + (-1)  =   22 = xThus , the formula is [Cr(H2O)5Cl]Cl2.

The formula is [Cr(H2O)5Cl]Cl2. The overall charge of the complex ion is (+2),because the Ligand chloro has a charge of (1).

(c)

Interpretation Introduction

Interpretation: The formulae for each of the given systematic names to be predicted.

Concept Introduction:

The cation is named before the anion.

Within a complex ion, the Ligands are arranged in an alphabetical order followed by the metal ion name. The anionic Ligand should ends with a letter –o, the neutral Ligand are called by the molecules (some common name for some exception).

When more Ligands are present, Greek prefixes like di, tri, tetra, penta, and hexa to specify their number.

The oxidation number of the metal is represented in roman numerals immediately following the metal ion name.

If the complex ion is an anion, the metal name should end with –ate.

To Identify: The formulae for each of the given systematic names to be predicted.

(c)

Expert Solution
Check Mark

Answer to Problem 23.17QP

The formula is [Cu(Br)4]2

Explanation of Solution

Predict the formula of tetrabromo-cuprate(II).

1)Theligands&metal ion               ;       2)oxidationstateofCuis:+2.tetra-bromorepresentedasBr4.cuprate (metal anion)representedasCu.3)Consider,[CuBr4]xoverall charge of complex ion = x ;       oxidation number of Cu =+2charge of (Br)ligand = (-1)2 + (-4)  =   x-2 = xThus , the formula is [Cu(Br)4]2.

The formula is [Cu(Br)4]2. The overall charge of the complex ion is (2), because the Ligand Bromo has a charge of (1).

(d)

Interpretation Introduction

Interpretation: The formulae for each of the given systematic names to be predicted.

Concept Introduction:

The cation is named before the anion.

Within a complex ion, the Ligands are arranged in an alphabetical order followed by the metal ion name. The anionic Ligand should ends with a letter –o, the neutral Ligand are called by the molecules (some common name for some exception).

When more Ligands are present, Greek prefixes like di, tri, tetra, penta, and hexa to specify their number.

The oxidation number of the metal is represented in roman numerals immediately following the metal ion name.

If the complex ion is an anion, the metal name should end with –ate.

To Identify: The formulae for each of the given systematic names to be predicted.

(d)

Expert Solution
Check Mark

Answer to Problem 23.17QP

The formula is [Fe(EDTA)]2

Explanation of Solution

Find the formula for ethylenediaminetetraacetatoferrate(II).

1)Theligands&metal ion               ;       2)oxidationstateofCuis:+2.ethylenediaminetetraacetatorepresentedasEDTA.ferrate (metal anion)representedasFe.3)Consider,[Fe(EDTA)]xoverall charge of complex ion = x ;       oxidation number of Fe =+2charge of (EDTA)ligand = (-4)2 + (-4)  =   x-2 = xThus , the formula is [Fe(EDTA)]2.

The formula is [Fe(EDTA)]2. The overall charge of the complex ion is (2), because the Ligand EDTA has a charge of (4)

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Chapter 23 Solutions

Chemistry

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