Chapter 24, Problem 49IAE

Interpretation Introduction

Interpretation:

The reason for theconcentration of ammine-aqua complex ${\text{[Cu(H}}_2{\text{O)}}_3{\text{NH}}_3{\text{)]}}^{\text{2+}}$ to be negligible when compared with ${{\text{[Cu(NH}}_3{\text{)}}_{\text{4}}\text{]}}^{\text{2+}}$ having 0.1M Cu (II) and 1M NH₃needs to be explained. Also, the condition at which it becomes significant needs to be determined.

Concept introduction:

Transition metal ions containing Hexaaqua undergoes substitution reactions in which the water molecules or M-O bonds are broken and replaced by chloride or ammonia ligands.

Moreover, the H₂O and NH₃ ligands are ofalmost same size and uncharged which facilitates the substitution reaction.