Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange
them from highest to lowest boiling point. -
correct answer ✅Highest: Nh3 SbH3 AsH3 PH3
What is the strongest type of intermolecular force present in H2? -
correct answer ✅Dispersion
Identify the compound that does not have dipole-dipole forces as
its strongest force. -
correct answer ✅Co2
Which of the following must be overcome during the boiling of
acetonitrile, CH3CN?
1. dispersion forces
2. dipole-dipole forces
3. hydrogen bonds -
correct answer ✅1 and 2
Place the following compounds in order of decreasing strength of
intermolecular forces.
,Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
I. CH3CH2CH2CH2CH2CH3 II. (CH3)3CCH3 III. (CH3)3CCH2CH3 -
correct answer ✅I>III>II
What type of intermolecular force causes the dissolution of KF in
water? -
correct answer ✅Ion-dipole force
What Inter molecular forces are present in: HBr -
correct answer ✅dispersion forces and dipole-dipole forces
What Inter molecular forces are present in: CH3COOH -
correct answer ✅dispersion forces, dipole-dipole forces and
hydrogen bonding
What Inter molecular forces are present in: Br2 -
correct answer ✅only dispersion forces
What Inter molecular forces are present in: He -
correct answer ✅only dispersion forces
Based on the expected intermolecular forces, which noble gas has
the highest boiling point?
,Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
Ar
Ne
Xe
Kr -
correct answer ✅Xe
Choose the substance with the lowest surface tension.
C6H6
CH3CH2CH2CH3
CH3OH
H2O
(CH3)2CO -
correct answer ✅CH3CH2CH2CH3
Place the following substances in order of decreasing vapor
pressure at a given temperature.
PF5 BrF3 CF4 -
correct answer ✅CF4 > PF5 > BrF3
, Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
Choose the substance with the lowest vapor pressure at a given
temperature.
Ar
CO2
CaI2
BF3
PF5 -
correct answer ✅Cal2
Propanol has a normal boiling point of 97.8°C. At 400 torr, it has a
boiling point of 82.0°C. What is the heat of vaporization?
24.9 kJ/mol
38.7 kJ/mol
12.3 kJ/mol
44.4 kJ/mol
52.7 kJ/mol -
correct answer ✅44.4 kj/mol
Questions & Answers (Grade A+)
The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange
them from highest to lowest boiling point. -
correct answer ✅Highest: Nh3 SbH3 AsH3 PH3
What is the strongest type of intermolecular force present in H2? -
correct answer ✅Dispersion
Identify the compound that does not have dipole-dipole forces as
its strongest force. -
correct answer ✅Co2
Which of the following must be overcome during the boiling of
acetonitrile, CH3CN?
1. dispersion forces
2. dipole-dipole forces
3. hydrogen bonds -
correct answer ✅1 and 2
Place the following compounds in order of decreasing strength of
intermolecular forces.
,Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
I. CH3CH2CH2CH2CH2CH3 II. (CH3)3CCH3 III. (CH3)3CCH2CH3 -
correct answer ✅I>III>II
What type of intermolecular force causes the dissolution of KF in
water? -
correct answer ✅Ion-dipole force
What Inter molecular forces are present in: HBr -
correct answer ✅dispersion forces and dipole-dipole forces
What Inter molecular forces are present in: CH3COOH -
correct answer ✅dispersion forces, dipole-dipole forces and
hydrogen bonding
What Inter molecular forces are present in: Br2 -
correct answer ✅only dispersion forces
What Inter molecular forces are present in: He -
correct answer ✅only dispersion forces
Based on the expected intermolecular forces, which noble gas has
the highest boiling point?
,Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
Ar
Ne
Xe
Kr -
correct answer ✅Xe
Choose the substance with the lowest surface tension.
C6H6
CH3CH2CH2CH3
CH3OH
H2O
(CH3)2CO -
correct answer ✅CH3CH2CH2CH3
Place the following substances in order of decreasing vapor
pressure at a given temperature.
PF5 BrF3 CF4 -
correct answer ✅CF4 > PF5 > BrF3
, Chem 210 Mastering Chem Final Exam
Questions & Answers (Grade A+)
Choose the substance with the lowest vapor pressure at a given
temperature.
Ar
CO2
CaI2
BF3
PF5 -
correct answer ✅Cal2
Propanol has a normal boiling point of 97.8°C. At 400 torr, it has a
boiling point of 82.0°C. What is the heat of vaporization?
24.9 kJ/mol
38.7 kJ/mol
12.3 kJ/mol
44.4 kJ/mol
52.7 kJ/mol -
correct answer ✅44.4 kj/mol
