Chapter 19, Problem 19.28QE

(a)

Interpretation Introduction

Interpretation:

Formula for coordination compound has to be given, a coordination compound containing two complex ions of $\text{Co}\left(\text{III}\right)$ , one with six $\text{CN}$ ions and the other with three ethylenediamine molecules.

Concept Introduction:

Nomenclature of coordination compounds:

Rules of Union of Pure and Applied Chemistry (IUPAC) system of nomenclature are,

• In coordination compounds, cation name comes first then anion. Name of ligands are given in the order of alphabetical then metal cation followed by the oxidation state in Roman numeral in parentheses then the anions are named.
• If one type of ligand is comes more times means it can be named with prefix: $\left(1\right)$ mono- (usually omitted), $\left(2\right)$ di-, $\left(3\right)$ tri-, $\left(4\right)$ tetra flowed by its name.
• Metal in the anionic complex is named as –ate in its suffix and negative ligands are named as –ato in its suffix.

(b)

Interpretation Introduction

Interpretation:

Formula for coordination compound has to be given, a coordination compound of platinum $\left(\text{II}\right)$ nitrate, in which four ammonia molecules are coordinated to the transition-metal ion.

Concept Introduction:

Refer to part (a)

(c)

Interpretation Introduction

Interpretation:

Formula for coordination compound has to be given, the sodium salt of the complex formed from $\text{Rh}\left(\text{III}\right)$, five ${\text{Cl}}^{\text{-}}$ ions, and one water molecule.

Concept Introduction:

Refer to part (a)