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Date: «date»
1
If water and carbon dioxide molecules interact, what major intermolecular force would exist between these molecules?
1
A
Hydrogen bonding
B
London dispersion
C
Ion­dipole forces
D
Dipole­dipole forces
2
Which of the following moleucle pairs are not involved in hydrogen bonding?
2
A
HCOOH, H2O
B
H2O, NH3
C
CH3OH, CH3COOH
D
H2 and I2
3
Arrange the following molecules in order of decreasing intermolecular interaction.
3
A
CH3OH > CH3NH2 > SO2 > Cl2
B
Cl2 > SO2 > CH3OH > CH3NH2
C
SO2 > CH3NH2 > CH3OH > Cl2 D
CH3NH2 > CH3OH > SO2 > Cl2 4
Which of the following has the highest boiling point?
4
A
H2 O
B
HF
C
HI
D
HBr
5
How much heat is necessary to melt 175.32 g of NaCl at 801oC? Hfus = 28.16 kJ/mol
5
A
22.5 kJ
B
9.39 kJ
C
30.2 kJ
D
84.5 kJ
6
Which of the following are in order of increasing boiling temperatures?
6
A
RbCl < CH3Cl < CH3OH < CH4
B
CH4 < CH3Cl > CH3OH > RbCl
C
CH3Cl < CH3OH < RbCl < CH4
D
CH4 < CH3OH < CH3Cl < RbCl
E
RbCl < CH3OH < CH3Cl < CH4
7
The following liquids are in order of increasing vapor pressure.
7
A
CH3CH2OH < CH3OCH3 < CH3CH2CH2
B
CH3CH2OH < CH3CH2CH2 < CH3OCH3 CH3CH2CH2 < CH3OCH3 < CH3CH2OH
C
D
CH3OCH3 < CH3CH2OH < CH3CH2CH2
8
Carbon dioxide sublimes. Which physical transformation occurs in sublimation?
8
A
gas to liquid
B
gas to solid
C
solid to liquid to gas
D
solid to gas
E
solid to liquid
9
What is the normal boiling point of this compound?
9
A
95oC
B
100oC
2.00
1.50
C
50oC
1.00
D
E
180oC
o
0.50
0
50
100
150
200
250
220 C
10
10
At 125oC and 1.50 atm of pressure this substance will be
A
a liquid
B
a solid
2.00
1.50
C
a gas
1.00
D
E
a solid & liquid in equilibrium
a gas & liquid in equilibrium
0.50
0
50
100
150
200
250
11
11 Determine from the phase diagram the maximum temperature which this compound will sublime.
A
67oC
B
95oC
2.00
1.50
C
100oC
1.00
D
E
220oC
It cannot sublime
0.50
0
50
100
150
200
250
12
12
Which pair of temperatures and pressures will produce a supercritical fluid?
A
150oC and 2.00 atm
B
98oC and 0.70 atm
2.00
1.50
C
145oC and 230 atm
1.00
D
E
10oC and 0.15 atm
o
250 C and 2.00 atm
0.50
0
50
100
150
200
250
13
13 The ligands in a complex ion act as
A
Lewis acids
B
Lewis bases
C
Arrhenius bases
D
Oxidizing agents
14
14 What is the formula for the following compound, tetrachlorodiaquaironate (III) ion?
A
[Fe(H2O)2Cl2]­
B
[Fe(H2O)2Cl4]­
C
[Fe(H2O)2Cl4]2­
D
[FeH2OCl4]2+
15
15 The bromide ion acting as a ligand would have the name
A
bromite
B
bromate
C
bromo
D
bromide
16