Question

Write Lewis structures and name the five structural isomers of hexane.

Short answer

Hexane, \({\rm{1}}\)-methyl pentane, \({\rm{2}}\)-methylpentane, \({\rm{2}}\),\({\rm{2}}\)-dimethylbutane, and \({\rm{2}}\),\({\rm{3}}\)-dimethylbutane are the products of this experiment.

Step-by-step solution

Lewis structure means

A Lewis structure is a molecule’s structural depiction in which dots indicate electron locations surrounding the atoms and lines or dot pairs represent covalent interactions. The objective of creating a Lewis dot structure is to aid detect chemical bonds formation by identifying lone electrons in molecules.

Determining the Lewis structure for hexane

Hexane is an alkane composed of six carbon atoms arranged in a straight chain.

five structural isomers of hexane

With the chemical formula \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{14}}}}\), there are five structural isomers.

The first is hexane, as previously stated.

\({\rm{2}}\)-methylpentane and\({\rm{3}}\)-methylpentane are the second and third ones, respectively.

There are 5 carbon atoms in a straight chain and one methyl group on each carbon atom in them.

\({\rm{2}}\),\({\rm{2}}\)-dimethylbutane and\({\rm{2}}\),\({\rm{3}}\)-dimethylbutane are the fourth and fifth ones, respectively.

Both have four carbon atoms in a straight chain and two methyl groups, but their arrangements are different.