Chapter 18, Problem 52E

Interpretation Introduction

Interpretation:

The most effective and the least effective reagent that can reduce a solution of ${\left[\text{Zn}{\left({\text{NH}}_{\text{3}}\right)}_4\right]}^{2+}$ should be chosen and reason for the choice should be explained.

Concept introduction:

A complex ion is essentially a polyatomic cation or anion that has a central metal ion to which other groups (molecules or ions) called ligands are attached.

The formation constant, of a complex ion is the equilibrium constant the equilibrium constant that is used to represent the formation of a complex ion from a central ion and its attached groups.

For equilibrium reactions, a principle called Le-chatelier’s principle comes into play. It states that equilibrium is always favored in the direction which counteracts the effect of any change in concentration.