Chapter 16, Problem 16.85QP

Interpretation Introduction

Interpretation:

The given bases have to be arranged in increasing order of their $K_b$ value.

Concept Information:

Base ionization constant ${\text{K}}_{\text{b}}$:

It is the equilibrium constant for the ionization of a base.

The ionization of a weak base $B$ is,

  ${\text{B}}_{\left(\text{aq}\right)}\text{+}{\text{H}}_{\text{2}}{\text{O}}_{\left(\text{l}\right)}\underset{}{\rightleftharpoons }{\text{BH}}_{\left(\text{aq}\right)}^{\text{+}}\text{+}{\text{OH}}_{\left(\text{aq}\right)}^{\text{-}}$

The equilibrium expression for the above reaction is given below.

  ${\text{K}}_{\text{b}}\text{=}\frac{{\text{[BH}}^{\text{+}}{\text{][OH}}^{\text{-}}\text{]}}{\text{[B]}}$