Chapter 17, Problem 48P

Interpretation Introduction

Interpretation:

The $p{K}_a$ values of glycine and $p{K}_a$ values of glycylglycine should be comparatively explained.

Concept introduction:

The value of $p{K}_a$ is depends upon the acidity of a compound or the easiness of the protonation.

The compound attached by electro withdrawing will have high tendency of protonation, so the compound have high acidic strength.

If the acidity or easiness of the protonation is high for a compound, then the value of $p{K}_a$ is less.

The structure of glycine is,