Chapter 2, Problem 13P

(a)

Interpretation Introduction

Interpretation:

The product formed when one equivalent of $HCl$ is added to $HOC{H}_{2}C{H}_{2}N{H}_3$ has to be determined.

Concept introduction:

Bronsted-Lowry definition: If a species loses a proton then it is an acid whereas if a species receives one proton, then it is base.

If a base receives one proton, then the formed species is a conjugate acid whereas an acid lose one proton, then the formed species is a conjugated base.

(b)

Interpretation Introduction

Interpretation:

Whether the given compound exists or not has to be interpreted.

Concept introduction:

Bronsted-Lowry definition: If a species loses a proton then it is an acid whereas if a species receives one proton, then it is base.

Acid dissociation constant ${\text{K}}_{\text{a}}$ represents how strong the acid is in a solution.

  $p{K}_a=-\log K_a$

As the $p{K}_a$ value increases, the strength of acid decreases gradually.

The value of $p{K}_a$ represents the chance of losing proton from a compound.