Chapter 24, Problem 51IAE

Interpretation Introduction

Interpretation:

Total $[C{l}^{-}]$ which is needed in a solution should be estimated.

Concept introduction:

A complex ion is formed when a metal ion reacts with a Lewis base in solution. This reaction is defined in terms of chemical equilibrium. A complexion comprises of a ligand and a metal ion as a result of an interaction of Lewis acid-base.

The Metal ion which is positively charged functions as a Lewis acid and Lewis base or the ligand has one or more lone pairs of electrons. For example, Cu²+, which is a highly charged and small metal ion having asignificant tendency to function as Lewis acids, consequently exhibiting the highest affinity to form complex ions.

The development of a complexion is a stepwise procedure, and everystep has its equilibrium constant. When two of the equations are added together, the equilibrium constants multiply. The Equilibrium Constant reflects the concentration in a reaction, which is the molarity, written as moles per liter $(M=mol/L)$.

$K=\frac{{[C]}^c{[D]}^d}{{[A]}^a{[B]}^b}$

The products of a reaction are present in the numerator, and the denominator has the reactants. The alphabets in upper-case are the molar concentrations of the reactants and products, and the alphabets in lower-case are the stoichiometric coefficients which balance the equation.