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Chapter 22: Problem 19

Draw a structural formula for each of the following compounds. a. 2-methylpropane b. 2-methylbutane c. 2-methylpentane d. 2-methylhexane

Short Answer

Expert verified
a. CH3 | CH3-C-CH3 b. CH3 CH3 | | CH3-C-CH2-C-CH3 c. CH3 CH3 | | CH3-C-CH2-C-CH2-C-CH3 d. CH3 CH3 | | CH3-C-CH2-C-CH2-CH2-C-CH3

Step by step solution

01

Identify the longest carbon chain

Using the names given, we can identify the main carbon chain in each compound by looking at their suffixes: propane, butane, pentane, and hexane. These contain 3, 4, 5, and 6 carbon atoms, respectively.
02

Identify the position of the methyl group

In each compound, the prefix "2-methyl" indicates that there is a methyl group (CH3-) attached to the second carbon atom in the main chain.
03

Draw the structural formula for each compound

Now, we will draw the structural formula for each compound using the information from steps 1 and 2. a. 2-methylpropane: Propane has a three-carbon chain, the structure is: CH3 | CH3-C-CH3 b. 2-methylbutane: Butane has a four-carbon chain. The structure is: CH3 CH3 | | CH3-C-CH2-C-CH3 c. 2-methylpentane: Pentane has a five-carbon chain. The structure is: CH3 CH3 | | CH3-C-CH2-C-CH2-C-CH3 d. 2-methylhexane: Hexane has a six-carbon chain. The structure is: CH3 CH3 | | CH3-C-CH2-C-CH2-CH2-C-CH3

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