Chapter 19, Problem 19.69P

Interpretation Introduction

(a)

Interpretation:The structure of glutamic acid exists at $\text{pH}=\text{1}$ is to be determined.

Concept introduction:The glutamic acid belongs to the class of alpha amino acids. It is used in the biosynthesis of proteins. The molecular formula of glutamic acid is ${\text{C}}_{\text{5}}{\text{H}}_{\text{9}}{\text{NO}}_{\text{4}}$.

Interpretation Introduction

(b)

Interpretation:The structures for the glutamic acid are formed by the addition of one, two and three equivalents of base are to be identified.

Concept introduction:The isoelectric point is the point where $\text{pH}$ value of the amino acid is neutral. At the isoelectric point, zwitter ion is formed when the carboxyl group donates a proton to the amino group. The structure of the amino acids depends upon the $\text{pH}$ value of the solution.

Interpretation Introduction

(c)

Interpretation:The structure of monosodium glutamate is to be proposed.

Concept introduction:The glutamic acid belongs to the class of alpha amino acids. It is used in the biosynthesis of proteins. The molecular formula of glutamic acid is ${\text{C}}_{\text{5}}{\text{H}}_{\text{9}}{\text{NO}}_{\text{4}}$.