Chapter 18.2, Problem 18.2AFP

a)

Interpretation Introduction

Interpretation: The acid-base reaction with ${\text{K}}_{\text{c}}$ value greater than 1 has to be written.

Concept introduction: ${\text{K}}_{\text{c}}$ value will be greater than 1 when the equilibrium of the net reaction lies towards right that is mostly towards the products side and the ${\text{K}}_{\text{c}}$ value will be less than 1 if the equilibrium lies towards the left is mostly towards the reactant side. When a strong acid and strong base are the reactants that are in equilibrium with weak acid and weak base than ${\text{K}}_{\text{c}}$ will be greater than one. Similarly, when a weak acid and weak base are the reactants, and they are in equilibrium with strong acid and strong base which will be the products then the ${\text{K}}_{\text{c}}$ value will be less than 1.

b)

Interpretation Introduction

Interpretation: The acid-base reaction with ${\text{K}}_{\text{c}}$ value less than 1 has to be written.

Concept introduction: ${\text{K}}_{\text{c}}$ value will be greater than 1 when the equilibrium of the net reaction lies towards the right that is mostly towards the products side and the ${\text{K}}_{\text{c}}$ value will be less than 1 if the equilibrium lies towards the left is mostly towards the reactant side. When a strong acid and strong base are the reactants that are in equilibrium with weak acid and weak base than ${\text{K}}_{\text{c}}$ will be greater than one. Similarly, when a weak acid and weak base are the reactants and they are in equilibrium with strong acid and strong base which will be the products then the ${\text{K}}_{\text{c}}$ value will be less than 1.