Organic Modeling Lab
You will build several 3 carbon organic compounds and determine the following for
each
a)
b)
c)
d)
e)
f)
The structural formula
The electron arrangement about each carbon atom
The bond angle between the three carbon atoms
the number of bonding pairs and lone pairs in each molecule
Presence of polar bonds
All intermolecular forces that would be experienced by a large volume of these
molecules (make sure to identify which part of the molecule exerts each IMF)
To build:
1. Propane
2. Propene
3. Propanal
4. Propanol
5. Propanone
6. Propadiene
7. 2,2-dichloropropane
8. Propanoic acid
Organic Modeling Lab
You will build several 3 carbon organic compounds and determine the following for
each
a)
b)
c)
d)
e)
f)
The structural formula
The electron arrangement about each carbon atom
The bond angle between the three carbon atoms
the number of bonding pairs and lone pairs in each molecule
Presence of polar bonds
All intermolecular forces that would be experienced by a large volume of these
molecules (make sure to identify which part of the molecule exerts each IMF)
To build:
1. Propane
2. Propene
3. Propanal
4. Propanol
5. Propanone
6. Propadiene
7. 2,2-dichloropropane
8. Propanoic acid
Organic Modeling Lab Answers
1) Propane
a.
b. tetrahedral
c. 109.5
d. BP: 10 LP: 0
e. No polar bonds
f. Dispersion forces
5) Propanone
a.
b. tetrahedral, trig planar,
tetrahedral
c. 120
d. BP: 10 LP: 2
e. C=O
f. Dipole-Dipole, Dispersion forces
2) Propene
a.
b. Tetrahedral, Trig planar, Trig
planar
c. 120
d. BP: 10 LP: 0
e. No polar bonds
f. Dispersion forces
6) Propadiene
a.
b. trig planar, linear, trig planar
c. 180
d. BP: 8 LP: 0
e. No polar bonds
f. Dispersion forces
3) Propanal
a.
b. tetrahedral, tetrahedral, trig
planar
c. 109.5
d. BP: 10 LP: 2
e. C-O
f. Dipole-Dipole, Dispersion forces
7) 2,2-dichloropropane
a.
b. tetrahedral
c. 109.5
d. BP: 10 LP: 6
e. C-Cl maybe
f. Dipole-Dipole (maybe) ,
Dispersion forces
4) Propanol
a.
b. tetrahedral
c. 109.5
d. BP: 11 LP: 2
e. C-O, O-H
f. Hydrogen Bonding Dipole-Dipole,
Dispersion forces
8) Propanoic Acid
a.
b. tetrahedral, tetrahedral, trigonal
planar
c. 109.5
d. BP: 11 LP: 4
e. C-O, O-H
f. Hydrogen Bonding, Dipole-Dipole,
Dispersion forces