Chapter 21, Problem 21.24P

Interpretation Introduction

(a)

Interpretation:

The equilibrium equation for cisplatin in aqueous solution is given as −

${\text{Pt(NH}}_{\text{3}}{\text{)}}_{\text{2}}{\text{Cl}}_{\text{2}}(aq)+{\text{H}}_{\text{2}}\text{O}\rightleftharpoons {[{\text{Pt(NH}}_{\text{3}}{\text{)}}_{\text{2}}{\text{(H}}_{\text{2}}\text{O)Cl}]}^{+}(aq)+{\text{Cl}}^{-}(aq)$

The reason for the forward reaction to be limited in the blood plasma needs to be explained.

Concept introduction:

The chemical formula of the compound can be defined as the set of the chemical symbols and the elements which are present in the compound in their relative proportions.

Interpretation Introduction

(b)

Interpretation:

The name of the complex ion ${{\text{[Pt(NH}}_{\text{3}}{\text{)}}_{\text{2}}{\text{(H}}_{\text{2}}\text{O)Cl}]}^{+}$ is to be determined.

Concept introduction:

The chemical formula of the compound can be defined as the set of the chemical symbols and the elements which are present in the compound in their relative proportions.

Interpretation Introduction

(c)

Interpretation:

It is to be determined in which manner the wavelength of maximum absorption would shift upon replacing a ${\mathrm{Cl}}^{-}$ ligand with a ${\text{H}}_{\text{2}}\text{O}$ ligand.

Concept introduction:

The oxidation state of an element is defined as the number assigned to the element which represents the number of elements lost or gained by the atom in the given compound. The oxidation state is directly proportional to the crystal field stabilization energy and crystal field stabilization energy is inversely proportional to the wavelength.