Name:
Max
CHML211
Exp. 1 Structure, Intermolecular Forces, and Solubility
Tech
Pre
In
Post
Score
Total Grade
10
20
20
50
PRE-LAB ASSIGNMENT: (EACH STUDENT will complete, print, and submit a copy at the beginning of the lab period. Without a
complete pre-lab assignment, you will not be allowed to perform the experiment, and will receive a zero for the lab.) …..max
score = 20 pts.
1.
Objective (In the provided space, write a brief purpose of the experiment in complete sentences, addressing all of the following points)



What effect will be investigated in this experiment using solubility testing?
How will the relative polarity of alcohols be determined in this experiment?
How will acid-base chemistry be introduced in this experiment?
2. Physical Data (Complete the following table using MSDS sheets from the following link:
http://www.sigmaaldrich.com/united-states.html. Copy all
of the OSHA hazards using the hazard codes provided.)
Compound
bp
(Co)
d
(g/mL)
Methanol
Ethyl acetate
Dichloromethane
Toluene
Hexane
Ethanol
1-Propanol
1-Butanol
Benzoic acid
Sodium benzoate
Naphthalene
mp
(Co)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
121-125
p-nitroaniline
Sodium bicarbonate
Hydrochloric acid
X
X
X
X
X
X
>300
79.5-81.0
146-149
X
X
OSHA HAZARDS
Harmful by ingestion. Irritant, Harmful by inhalation.
Irritant
Flammable solid, Carcinogen, Highly toxic by inhalation, Toxic by ingestion,
Irritant
Toxic by inhalation., Toxic by ingestion, Toxic by skin absorption
No known OSHA hazards
Corrosive
3. Experimental Outline (In the space provided, give a brief description of the procedure that will be followed in this experiment in 10 lines or less.)
1
2
3
4
5
6
7
8
9
10
4. Pre-Lab Questions (Answer the following questions prior to lab.)
a.
b.
From the following list, circle the STRONGEST intermolecular force. Mark an “X” through the WEAKEST
intermolecular force.
DIPOLE-DIPOLE FORCE
HYDROGEN BONDING
LONDON DISPERSION FORCE
Circle the most polar molecule from the list below:
HEXANE
WATER
ETHANOL