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Draw the structural formula for each of the following compounds: a) 2-methylheptane b) 3-ethylhexane
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3. Draw the structural formula for each of the following compounds:
a) 2-methylheptane
Step 1: Draw a 7-carbon chain (heptane).
Step 2: Add a methyl group () to the second carbon.
Step 3: Fill in the remaining hydrogen atoms to satisfy carbon's valency of four.
b) 3-ethylhexane
Step 1: Draw a 6-carbon chain (hexane).
Step 2: Add an ethyl group () to the third carbon.
Step 3: Fill in the remaining hydrogen atoms.
c) 2,2,4-trimethylpentane
Step 1: Draw a 5-carbon chain (pentane).
Step 2: Add two methyl groups to the second carbon and one methyl group to the fourth carbon.
Step 3: Fill in the remaining hydrogen atoms.
d) 2,3-dichlorobutane
Step 1: Draw a 4-carbon chain (butane).
Step 2: Add a chlorine atom to the second carbon and another to the third carbon.
Step 3: Fill in the remaining hydrogen atoms.
4. Draw and name the structures of all the isomers of:
a) Butane ()
- n-Butane (straight chain)
- 2-methylpropane (isobutane)
b) Pentane ()
- n-Pentane (straight chain)
- 2-methylbutane (isopentane)
- 2,2-dimethylpropane (neopentane)
c) Hexane ()
- n-Hexane (straight chain)
- 2-methylpentane
- 3-methylpentane
- 2,2-dimethylbutane
- 2,3-dimethylbutane
\begin{align*}
&\quad \quad \quad H \quad H \\
&\quad \quad \quad \mid \quad \mid \\
&\quad \quad H-C-H \quad H-C-H \\
&\quad \quad \quad \mid \quad \mid \\
H &-C-C-C-C-H \\
&\mid \quad \mid \Still stuck on this one?
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