Intermolecular Forces Chapter Questions

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Intermolecular forces

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-Types of intermolecular forces

–Identify forces of attraction between molecules in a pure sample

–Identify forces of attraction between 2 different molecules

–Effect of IMF on properties of liquids (viscosity, boiling point, melting point, vapor pressure)

–Solubility in terms of “like dissolves “like”

–Heating curves

–Phase diagrams

IA
The Periodic Table of the Elements
VIIIA
1
2
H
He
1.008 IIA
IIIA IVA VA VIA VIIA 4.003
3
4
5
6
7
8
9
10
Li
Be
B
C
N
O
F
Ne
6.941 9.012
10.81 12.01 14.01 16.00 19.00 20.18
11
12
13
14
15
16
17
18
Na Mg
VIIIB
Al
Si
P
S
Cl
Ar
22.99 24.31 IIIB IVB VB VIB VIIB
26.98
28.09
30.97
32.07
35.45
39.95
IB IIB
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca Sc
Ti
V
Cr Mn Fe
Co Ni
Cu Zn Ga Ge As Se
Br Kr
39.10 40.08 44.96 47.87 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.61 74.92 78.96 79.90 83.80
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Rb Sr
Y
Zr Nb Mo Tc Ru Rh Pd Ag Cd In
Sn Sb Te I
Xe
85.47 87.62 88.91 91.22 92.91 95.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3
55
56
57
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
Cs Ba La Hf Ta W
Re Os Ir
Pt
Au Hg Tl
Pb Bi
Po At Rn
132.9 137.3 138.9 178.5 180.9 183.8 186.2 190.2 192.2 195.1 197.0 200.6 204.4 207.2 209.0 (209) (210) (222)
87
88
89
104 105 106 107 108 109 110 111 112
Fr
Ra Ac Rf
Db Sg Bh Hs Mt Uun Uuu Uub
(223) (226) (227) (261) (262) (266) (264) (269) (268) (271) (272) (277)
1
Sample Quiz 5
Name: _____________________
Questions #1-5 Multiple choice. (2 points each)
1. Which of the following molecules contain hydrogen bonds?
A) H2S
B) CH3OH
C) CH4
D) H2CO
2. Arrange the following molecules in order of increasing boiling point.
hexane
butane
pentanal
isobutane
A) pentanal, isobutane, hexane, butane
B) butane, isobutane, hexane, pentanal
C) hexane, isobutane, butane, pentanal
D) isobutane, butane, hexane, pentanal
3. Which of the following liquids will have the highest vapor pressure?
A) SiF4
B) SiBr4
C) SiCl4
4. Which of the following phase changes are endothermic?
A) freezing B) sublimation
C) condensation
D) SiH4
E) SiI4
D) none of the above
5. What are all the intermolecular forces found in the following:
(1 pt each)
A) Kr ____________________________________________________________
B) (CH3)2SO _______________________________________________________
C) NF3_________________________________________________________________________________________
6. Name the strongest intermolecular force found between the following compounds: (2 pts each)
CO and HF ___________________________________________________________
HCl and CF4 __________________________________________________________
2
7. How much heat (in kJ) would be released if 15.0 g of H2O(g) at 120.0 oC condensed onto your
hand to a final temperature of 37oC? The heat of fusion is 6.01 kJ/mol and heat of vaporization
is 40.65 kJ/mol.
(5 points)
8. Consider the phase diagram below.
A) Identify phases 1, 2, 3 above.
(2 points)
B) What is the significance at point D? (1 sentence)
(1 points)
C) What would happen to the unknown compound if it begins at 10.0 atm and 197.5 K and
the pressure is brought down to 0.50 atm?
(2 points)
A) It will stay the same
B) It will melt
C) It will sublimate
D) It will vaporize
E) It will condense
3
IA
The Periodic Table of the Elements
VIIIA
1
2
H
He
1.008 IIA
IIIA IVA VA VIA VIIA 4.003
3
4
5
6
7
8
9
10
Li
Be
B
C
N
O
F
Ne
6.941 9.012
10.81 12.01 14.01 16.00 19.00 20.18
11
12
13
14
15
16
17
18
Na Mg
VIIIB
Al
Si
P
S
Cl
Ar
22.99 24.31 IIIB IVB VB VIB VIIB
26.98
28.09
30.97
32.07
35.45
39.95
IB IIB
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca Sc
Ti
V
Cr Mn Fe
Co Ni
Cu Zn Ga Ge As Se
Br Kr
39.10 40.08 44.96 47.87 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 72.61 74.92 78.96 79.90 83.80
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Rb Sr
Y
Zr Nb Mo Tc Ru Rh Pd Ag Cd In
Sn Sb Te I
Xe
85.47 87.62 88.91 91.22 92.91 95.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3
55
56
57
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
Cs Ba La Hf Ta W
Re Os Ir
Pt
Au Hg Tl
Pb Bi
Po At Rn
132.9 137.3 138.9 178.5 180.9 183.8 186.2 190.2 192.2 195.1 197.0 200.6 204.4 207.2 209.0 (209) (210) (222)
87
88
89
104 105 106 107 108 109 110 111 112
Fr
Ra Ac Rf
Db Sg Bh Hs Mt Uun Uuu Uub
(223) (226) (227) (261) (262) (266) (264) (269) (268) (271) (272) (277)
1
Sample Quiz 6
Name: _______KEY___________
Questions #1-5 Multiple choice. (2 points each)
1. Which of the following molecules contain hydrogen bonds?
A) H2S
B) CH3OH
C) CH4
D) CH2O
2. Arrange the following molecules in order of increasing boiling point.
hexane
butane
pentanal
isobutane
A) pentanal, isobutane, hexane, butane
B) butane, isobutane, hexane, pentanal
C) hexane, isobutane, butane, pentanal
D) isobutane, butane, hexane, pentanal
3. Which of the following liquids will have the highest vapor pressure?
A) SiF4
B) SiBr4
C) SiCl4
4. Which of the following phase changes are endothermic?
A) freezing B) sublimation
C) condensation
D) SiH4
E) SiI4
D) none of the above
5. What are all the intermolecular forces found in the following:
A) Kr ____dispersion forces__________________________________________
B) (CH3)2SO ______dispersion forces and dipole-dipole forces_______________
C) NF3__________dispersion forces and dipole-dipole forces_____________________________
6. Name the strongest intermolecular force found between the following compounds:
CO and HF _____dipole-dipole forces_____________________________________
HCl and CF4 _______dispersion forces____________________________________
2
7. How much heat (in kJ) would be released if 15.0 g of H2O(g) at 120.0 oC condensed onto your
hand to a final temperature of 37oC? The heat of fusion is 6.01 kJ/mol and heat of vaporization
is 40.65 kJ/mol.
(5 points)
8. Consider the phase diagram of compound X below.
A) Identify phases 1, 2, 3 above.
1 = solid; 2 = gas; 3 = liquid
B) What is the significance at point D? (1 sentence)
(2 points)
(1 points)
Triple point = condition at which all 3 phases can exist simultaneously
C) What would happen to compound X if it begins at 10.0 atm and 197.5 K and the
pressure is brought down to 0.50 atm?
(2 points)
A) It will stay the same
B) It will melt
C) It will sublimate
D) It will vaporize
E) It will condense
3
1
Name:________________________
density of water = 1 g/mL
density of mercury = 13.6 g/mL
101325 Pa = 1 atm
1
18
Periodic Table of the Elements
1A
8A
1
2
H
2
13
14
15
16
17
He
1.008
3
2A
3A
4A
5A
6A
7A
4
5
6
7
8
9
4.003
10
O
F
Li
Be
B
C
N
6.941
9.012
10.81
12.01
14.01
16.00 19.00
13
14
15
16
S
CI
Ar
39.95
11
Transition metals
12
Si
P
17
18
Na
Mg
22.99
24.31
3
4
5
6
7
8
9
10
11
12
26.98
28.09
30.97
32.07
35.45
19
20
21
22
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
Kr
83.80
36
K
Ca
Sc
39.10
40.08
44.96
47.88
50.94
52.00
54.94
55.85
58.93
58.69
63.55
65.38
69.72
72.59
74.92
78.96
79.90
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
Xe
85.47
87.62
88.91
91.22
92.91
95.94
(98)
101.1
102.9
106.4
107.9
112.4
114.8
118.7
121.8
127.6
126.9
131.3
55
56
57
Ti
AI
Ne
20.18
Cs
Ba
La
Hf
Ta
W
Re
Os
76
77
Ir
Pt
Au
Hg
80
81
TI
Pb
Bi
Po
At
Rn
132.9
87
137.3
88
138.9
89
178.5
104
180.9
105
183.9
106
186.2
107
190.2
108
192.2
109
195.1
110
197.0
111
200.6
204.4
207.2
209.0
(209)
(210)
(222)
Unq
Unp
Unh
Uns
Uno
Une
Uun
Uuu
Fr
Ra
Ac
(223)
226
(227)
72
73
74
75
Lanthanides
58
59
Ce
60
61
78
62
79
63
64
65
82
66
83
67
84
54
68
85
69
86
70
71
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
140.1 140.9
Actinides
90
91
144.2
(145)
150.4
152.0
157.3
158.9
162.5
164.9
167.3
168.9
173.0
175.0
Th
Pa
U
Np
Pu
Am
Cm
Bk
Cf
Es
Fm
100
101
102
103
232.0
(231)
238.0
(237)
(244)
(243)
(247)
(247)
(251)
(252)
(257)
(258)
(259)
(260)
92
93
94
95
96
97
98
99
Md
No
Lr

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