SCH4C
Model Building
Molecule
Formula
Heptane
C7H16
Name:
Structural Formula Drawing
Objectives:
1. To construct molecular models of some simple organic structures and to
represent these structures with structural diagrams and formulas.
2. To construct molecular models of more complicated organic structures
illustrating different isomers and then represent these with structural
diagrams and formulas.
Equipment:
 Model building kit
Procedure:
1. Using the model building kit, construct models of each of the following
alkanes. Draw a table on a piece of looseleaf. In your table 1, Write the
name and formula of the molecule and then draw the structural formula for
each molecule.
Table 1:
Molecule
Formula
Drawing
a. Methane
b. Ethane
c. Propane
2. Construct models for the isomers you find for the following compounds.
Draw a table on your piece of looseleaf. In table 2, name and write the
formula for the molecule and then draw all of the structural formulas for all
isomers (include the names of each isomer).
Table 2:
Structure
Formula
Drawings and names
a.
b.
c.
d.
Butane
Pentane
Hexane
Cyclohexane
SCH4C
Model Building
Name:
3. Construct all of the isomers of butene. In table 3, draw all of the structural
formulas and include the names of each.
4. Construct all of the isomers of propyne. In table 4, draw all of the structural
formulas and include the names of each.
5. Construct all of the isomers of hexanol (C6H13OH) . In table 5, draw all of
the structural formulas and include the names of each – remember to
identify the position of the OH group in the name!
Analysis:
1. How many isomers did you find for each of the following?
a. Methane
b. Ethane
c. Propane
d. Butane
e. Pentane
f. Hexane
2. Can cyclopentane be considered an isomer of pentane? Why or why not?
3. Why is 6-decene not possible?
4. Extra Practice!
1. 3-Octyne
2. 1-Hexene
3. 2-Nonene
4. Hexane
5. 4-Nonyne
6. 3-Hexene
7. CH3-CH2-CH=CH-CH2-CH2-CH3
8. CH3-CH=CH-CH2-CH2-CH3
9. CH3-CH2-CH=CH-CH2-CH2-CH2-CH3
10. CH3-CH3