Covalent Bonding And Nomenclature Chemistry Worksheet Page 4
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2
3
4
5
6c.
HI
d.
BeH
2
Comparing Boiling Points
Two factors that affect boiling point are the mass of the substance (molar mass) and t
he
s
trength of the intermolecular forces of attraction
. The stronger the intermolecular
forces of attraction the h
igher the boiling point.
Examine the table below.
Boiling Points
of
Halogens
Physical State at
M
olar Mas
s
Boiling Point
Name
Fo
rmu
la
Room Temperature
(g/mol)
(K, at 1 atm)
fluorine
F
gas
38.0
85.0
2
chlorine
Cl
gas
70.9
239.1
2
b
romine
Br
liquid
159.8
331.9
2
iodine
I
solid
253.8
457.4
2
1.
What relationship exists between the mass of the halogens and the boiling point?
2.
Arrange the halogens
in order of increasing intermolecular strength of attraction.
Justify your answer.
4
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