Chapter 22.1, Problem 1SP

Interpretation Introduction

Interpretation: Complete structural formulas for the straight-chain alkanes with five and six Carbon atoms is to be drawn.

Concept Introduction: When more than 2 Carbon atoms are connected like the links of a chain, they are called straight-chain alkanes.

Answer to Problem 1SP

Structural formula for the straight-chain alkane having 5 Carbon atoms

  ${\text{CH}}_{\text{3}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{3}}$

Structural formula for the straight-chain alkane having 6 Carbon atoms

  ${\text{CH}}_{\text{3}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{3}}$

Explanation of Solution

Given Information: Straight-chain alkanes with 5 and 6 Carbon atoms.

Draw five and six Carbon atoms in a row, then to show Carbon-Carbon bonds, they should be put in lines.

Carbon with 5 atoms Carbon with 6 atoms

C-C-C-C-C

C-C-C-C-C-C

Enough covalent bonds are to be added to give each Carbon a total of 4 bonds.

Finally, add Hydrogen to fill out the Carbon-Hydrogen bonds.

Carbon with 5 atoms Carbon with 6 atoms

  ${\text{CH}}_{\text{3}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{3}}$ ${\text{CH}}_{\text{3}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{2}}-{\text{CH}}_{\text{3}}$