Chapter 11, Problem 11A.1AST

(a)

Interpretation Introduction

Interpretation:

The line structure of aspirin has to be drawn.

Concept Introduction:

Line structure:  Line structure is a simplest representation of a hydrocarbon.  In line structure, the chain of carbon atoms is shown as a zigzag line.  The end of each short line in the zigzag represents a carbon atom.  Since the carbon nearly always has a valence of four in organic compounds, it is not necessary to show the hydrogen atoms.

Answer to Problem 11A.1AST

The line structure of aspirin is,

Explanation of Solution

Aspirin is called as acetylsalicylic acid.  The molecular formula of aspirin is ${\text{CH}}_{\text{3}}{\text{COOC}}_{\text{6}}{\text{H}}_{\text{4}}\text{COOH}\text{.}$  The line structure of aspirin is,

(b)

Interpretation Introduction

Interpretation:

The structural formula for ${\text{CH}}_{\text{3}}{{\text{(CH}}_{\text{2}}\text{)}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{2}}{\text{CH}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{3}}$ has to be drawn.

Concept Introduction:

Structural formula:  Structural formulas identify the location of chemical bonds between the atoms of a molecule.  A structural formula consists of symbols for the atoms connected by short lines that represent chemical bonds-one, two or three standing lines for single, double or triple bonds respectively.

Answer to Problem 11A.1AST

The structural formula for ${\text{CH}}_{\text{3}}{{\text{(CH}}_{\text{2}}\text{)}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{2}}{\text{CH}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{3}}$ is,

Explanation of Solution

The name of the compound is $\text{2,2,4,4-tetramethylheptane}\text{.}$

The condensed formula of the compound is ${\text{CH}}_{\text{3}}{{\text{(CH}}_{\text{2}}\text{)}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{2}}{\text{CH}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{3}}.$

The structural formula for ${\text{CH}}_{\text{3}}{{\text{(CH}}_{\text{2}}\text{)}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{2}}{\text{CH}}_{\text{2}}\text{C}{\left({\text{CH}}_{\text{3}}\right)}_{\text{3}}$ is,