Naming Branched Alkanes PDF

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3

Lisa Williams

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Naming Alkanes – Worksheet #1 Name the following branched alkanes:

H3C

CH

CH 3

2- methylpropane

1. CH3

H3C

CH

CH 3

2--methylbutane

2.

H3C

CH2

CH2

CH2

CH3

CH

CH2

CH2

CH3

4- ethylheptane

3. CH2

4.

H3C

CH2

CH2

CH3

CH

CH2

CH3

CH

CH2

CH3

CH

CH2

CH3

CH2

CH3

3-ethyl-4-methylheptane

CH3

H3C

CH2

CH

CH2

5. CH3

6.

CH2

H3C

CH2

CH2

CH2

CH2

H3C

CH2

CH2

CH2

C

CH2

CH3

3-methyl-5-propyloctane

5-ethyl-5-methyl-decane

CH3

CH2

CH2

CH3

CH

CH 2

CH

CH3

CH2

CH2

4-ethyl-6- methyl nonane 7.

H2C CH3

CH3

(over)

Draw structural formulas for the following molecules. Remember the following: • • • •

Carbons on the end of a chain are attached to three hydrogens Carbons in the middle of a chain are attached to two hydrogens Carbons that have one branch attached are also attached to one hydrogen Carbons that have two branches attached are not attached to any hydrogens.

8.

4-ethyl-octane

9.

2-methyl-nonane

10. 2-methyl-2-ethyl-butane

11. 3-ethyl-pentane

12. 2-methyl-3-ethyl-heptane...