Give the structural molecular formula for 1,2-dimethyl hexane
The structural molecular formula for 1,2-dimethylhexane is:
CH3 - CH(CH3) - CH2 - CH2 - CH2 - CH3
To determine the structural molecular formula for 1,2-dimethyl hexane, let's break it down step-by-step:
Step 1: Understand the compound.
A hexane molecule consists of six carbon atoms in a straight chain, with 14 hydrogen atoms attached to them. The prefix "1,2-dimethyl" indicates that there are two methyl (CH3) groups attached to carbons 1 and 2.
Step 2: Identify the carbon chain.
We start by drawing a straight chain of six carbon atoms, representing the hexane backbone:
H H H H H H
| | | | | |
H3C-C-C-C-C-C-C-CH3
Step 3: Add methyl groups.
Next, we attach methyl groups to carbons 1 and 2. A methyl group (CH3) consists of a carbon atom bonded to three hydrogen atoms:
H H H H H H
| | | | | |
H3C-C-C-C-C-C-CH3
| |
CH3
Step 4: Finalize the structural formula.
After adding the methyl groups, we have the final structural molecular formula for 1,2-dimethyl hexane:
H H H H H H
| | | | | |
H3C-C-C-C-C-C-CH3
| |
CH3
This structural formula represents 1,2-dimethyl hexane.