Chapter 20.6, Problem 20.6PSP

(a)

Interpretation Introduction

Interpretation:

Counter ion in the coordination compound ${\text{[Cu(NH}}_{\text{3}}{\text{)}}_{\text{4}}{\text{]SO}}_{\text{4}}$ has to be identified.

Concept Introduction:

In coordination compounds, the ion that is placed outside the square bracket is known as counter ion.  This will have the charge equal and opposite to that of the charge of the coordination sphere to make the coordination compound neutral.

(b)

Interpretation Introduction

Interpretation:

Central metal ion in the coordination compound ${\text{[Cu(NH}}_{\text{3}}{\text{)}}_{\text{4}}{\text{]SO}}_{\text{4}}$ has to be identified.

Concept Introduction:

In coordination compounds, central metal ion is the one that is present inside the coordination sphere.  The metal ion is placed inside the brackets.

(c)

Interpretation Introduction

Interpretation:

Ligands in the coordination compound, ${\text{[Cu(NH}}_{\text{3}}{\text{)}}_{\text{4}}{\text{]SO}}_{\text{4}}$ has to be identified.

Concept Introduction:

In coordination compounds, ligands are the one that are bonded to the central metal ion.  The bond present between central metal ion and the ligands is coordinate covalent bonds.

(d)

Interpretation Introduction

Interpretation:

Formula and charge of complex ion in the coordination compound ${\text{[Cu(NH}}_{\text{3}}{\text{)}}_{\text{4}}{\text{]SO}}_{\text{4}}$ has to be identified.

Concept Introduction:

In coordination compounds, complex ions are the one that are present inside the bracket.  Counter ions are the one that is present outside the bracket.