Chapter 19, Problem 19.40P

Interpretation Introduction

(a)

Interpretation:

The skeletal structure for B needs to be drawn and the cis double bond needs to be clearly shown.

Concept Introduction:

Fatty acids are carboxylic acids with long carbon chains. There are two types of fatty acids as saturated fatty acids and unsaturated fatty acids. Saturated fatty acids have no double bonds in the carbon chain while, unsaturated fatty acids have one or more double bonds.

Interpretation Introduction

(b)

Interpretation:

The type of omega-n acid needs to be determined.

Concept Introduction:

The unsaturated fatty acids can be classified as omega-n acids. Here, n is the carbon at which the first double bond occurs.

Interpretation Introduction

(c)

Interpretation:

The stereoisomer of B needs to be drawn.

Concept Introduction:

Stereoisomers are molecules that have the same molecular formula and connectivity of atoms but differ in the three-dimensional orientation of the atoms in space. There are two types of stereoisomers as diastereomers and enantiomers.

Interpretation Introduction

(d)

Interpretation:

The structure of the wax formed from A and CH₃(CH₂)₈OH needs to be drawn.

Concept Introduction:

Waxes are esters formed by reacting a fatty acid and high molecular weight alcohol.