Intermolecular forces

Worksheet
1. Identify the strongest intermolecular force present in pure samples of the following substances:
SO2                                              H2O                                                   CH2Cl2
SCO                                             PCl3                                                    SO3
1. Identify the strongest intermolecular force operating in the condensed phases of thefollowing substances. Fully explain how you determined this.
a. Cl2
 
b. CO               
.
c. SO2
 
d. CH2Cl2        
 
e. HF
 
g. CH3-O-CH3
 
1. Based on the intermolecular forcespresent, predict the relative boiling points of each of the substances below. Arrange each series of substances in order of increasing boiling point. State your reasons for the order you use (identifythe forces and explain how they affect the boiling point).
            a. dimethyl ether (CH3OCH3), ethanol (CH3CH2OH), and propane (CH3CH2CH3)
 
            b. Br2, Cl2, I2
 
1. For eachpair of substance identify the substance that is likely to have the higher vapor pressure. Explain your reasoning.
1.           CO2                  or                  SO2
 
1.         CH3OH             or               CH3-O-CH3
 
1. Circle all the compounds in the following list which would be expected to form intermolecular hydrogen bonds in the liquid state:
(a) CH3OCH3            (b)CH4           (c) HF           (d) CH3CO2H           (e) Br2            (f) CH3OH
 (dimethyl ether)                                                       (aceticacid)                                (methanol)
 
 

 6. Specify the predominant intermolecular force involved for each substance in the space immediately following the substance.  Then in the last column, indicate which member of the pair you would expect tohave the higher boiling point. 
Substance #1
Predominant Intermolecular Force
 
Substance #2
Predominant Intermolecular...