Chapter 17, Problem 80P

Interpretation Introduction

Interpretation:

The correct structures that represent soap should be selected from the following:

  ${\text{CH}}_{\text{3}}{\text{CH}}_2{\text{CO}}_{\text{2}}{}^{\text{-}}{\text{K}}^{\text{+}}$ ; ${\text{CH}}_{\text{3}}{\left({\text{CH}}_{\text{2}}\right)}_{\text{16}}\text{COOH}$ ; ${\text{CH}}_{\text{3}}{\left({\text{CH}}_{\text{2}}\right)}_{\text{9}}{\text{CO}}_{\text{2}}{}^{\text{-}}{\text{Na}}^{\text{+}}$

Concept Introduction:

Lipids are biomolecules which involve in different biochemical reactions. They are special types of organic molecules which can only identify with the help of their physical properties, not by the presence of any certain functional group.

Fatty acids are long chain carboxylic acid which may or may not have unsaturation in the molecule. They react with glycerol to form triglyceride. The reaction is known as esterification as carboxylic acid group react with alcoholic group to form ester group.