Chapter 24, Problem 52IAE

Interpretation Introduction

(a)

Interpretation:

With reference to the stability of ${[Co{(N{H}_3)}_6]}^{3+}(aq)$ the E^o cell reaction is +0.59 V should be verified.

Concept introduction:

A complex ion is formed when a metal ion reacts with a Lewis base in solution. This reaction is defined in relation to 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 a significant 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 every step 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.

Interpretation Introduction

(b)

Interpretation:

The value of $[C{o}^{3+}]$ should be calculated that has a total concentration of cobalt of 0.1 M and [NH₃]= 0.1 M.

Concept introduction:

A complex ion is formed when a metal ion reacts with a Lewis base in solution. This reaction is defined concerning 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 a significant 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 every step 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.

Interpretation Introduction

(c)

Interpretation:

For the value of [Co³⁺] calculated in part (b), the reaction will occur or not should be determined.

Concept introduction:

A complex ion is formed when a metal ion reacts with a Lewis base in solution. This reaction is defined concerning 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 a significant 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 every step 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.