Question 1

Which is expected to have the largest dispersion forces?

Accepted Answer

A) C3H8 
B) C12H26 
C) F2 
D) Be Cl2 
A) C3H8 
B) C12H26 
C) F2 
D) Be Cl2

Question 2

Identify the compound that does not have dipole-dipole forces as its strongest force.

Accepted Answer

A) CH2Br2 
B) CH3OCH3 
C) CH3Cl 
D) HCBr3 
E) CO2 
A) CH2Br2 
B) CH3OCH3 
C) CH3Cl 
D) HCBr3 
E) CO2

Question 3

Identify the term used to describe the ability of a liquid to flow against gravity up a narrow tube.

Accepted Answer

A) capillary action 
B) viscosity 
C) surface tension 
D) density 
E) None of the above 
A) capillary action 
B) viscosity 
C) surface tension 
D) density 
E) None of the above

Question 4

Place the following substances in order of increasing boiling point.
Ne Cl2 O2

Accepted Answer

A) Ne 2 2 
B) Cl2 2 2 2 2 2 
E) Ne 2 2 
A) Ne 2 2 
B) Cl2 2 2 2 2 2 
E) Ne 2 2

Question 5

Determine ΔHvap for a compound that has a measured vapor pressure of 24.3 torr at 273 K and 135 torr at 325 K.

Accepted Answer

A) 41 kJ/mol 
B) 79 kJ/mol 
C) 24 kJ/mol 
D) 13 kJ/mol 
E) 34 kJ/mol 
A) 41 kJ/mol 
B) 79 kJ/mol 
C) 24 kJ/mol 
D) 13 kJ/mol 
E) 34 kJ/mol

Question 6

Choose the substance with the lowest surface tension.

Accepted Answer

A) CH3SH 
B) CH3CH2CH2CH3 
C) C6H6 
D) H2O 
E) (CH3)2CO 
A) CH3SH 
B) CH3CH2CH2CH3 
C) C6H6 
D) H2O 
E) (CH3)2CO

Question 7

Ethyl chloride,C2H5Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes;its heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 20.0 g of ethyl chloride?

Accepted Answer

A) 8.18 kJ 
B) 341 kJ 
C) 528 kJ 
D) 3410 kJ 
A) 8.18 kJ 
B) 341 kJ 
C) 528 kJ 
D) 3410 kJ

Question 8

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm3.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Accepted Answer

A) At 
B) Pd 
C) Mn 
D) Fe 
E) Cr 
A) At 
B) Pd 
C) Mn 
D) Fe 
E) Cr

Question 9

Place the following substances in order of increasing vapor pressure at a given temperature.
SF6 SiH4 SF4

Accepted Answer

A) SF6 4 4 
B) SiH4 4 6 
C) SF6 4 4 
D) SF4 6 4 
E) SiH4 6 4 
A) SF6 4 4 
B) SiH4 4 6 
C) SF6 4 4 
D) SF4 6 4 
E) SiH4 6 4

Question 10

How many H- ions are around each Na+ ion in NaH,which has a cubic unit cell with H- ions on each corner and each face?

Accepted Answer

A) 1 
B) 4 
C) 6 
D) 8 
A) 1 
B) 4 
C) 6 
D) 8

Question 11

Based on the figure above,the boiling point of diethyl ether under an external pressure of 1.32 atm is approximately ________°C.

Accepted Answer

A) 10 
B) 20 
C) 30 
D) 40 
E) 0 
A) 10 
B) 20 
C) 30 
D) 40 
E) 0

Question 12

Place the following substances in order of decreasing vapor pressure at a given temperature.
BeF2 CH3OH OF2

Accepted Answer

A) CH3OH > OF2 > BeF2 
B) BeF2 > OF2 > CH3OH 
C) OF2 > CH3OH > BeF2 
D) OF2 > BeF2 > CH3OH 
E) BeF2 > CH3OH > OF2 
A) CH3OH > OF2 > BeF2 
B) BeF2 > OF2 > CH3OH 
C) OF2 > CH3OH > BeF2 
D) OF2 > BeF2 > CH3OH 
E) BeF2 > CH3OH > OF2

Question 13

Which of the following is considered an atomic solid?

Accepted Answer

A) Br2 
B) CsCl 
C) N2 
D) Nb 
E) None of these is an atomic solid. 
A) Br2 
B) CsCl 
C) N2 
D) Nb 
E) None of these is an atomic solid.

Question 14

Place the following substances in order of decreasing boiling point.
H2O N2 CO

Accepted Answer

A) CO > H2O > N2 
B) N2 > CO > H2O 
C) H2O > CO > N2 
D) CO > N2 > H2O 
E) N2 > H2O > CO 
A) CO > H2O > N2 
B) N2 > CO > H2O 
C) H2O > CO > N2 
D) CO > N2 > H2O 
E) N2 > H2O > CO

Question 15

What fraction of an atom is at each corner a face-centered cubic unit cell?

Accepted Answer

A) 1/4 
B) 1/2 
C) 1/8 
D) 1/6 
A) 1/4 
B) 1/2 
C) 1/8 
D) 1/6

Question 16

Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a ΔHvap of 32.1 kJ/mol.

Accepted Answer

A) 255 K 
B) 368 K 
C) 412 K 
D) 390.K 
E) 466 K 
A) 255 K 
B) 368 K 
C) 412 K 
D) 390.K 
E) 466 K

Question 17

Which of the following substances should have the highest melting point?

Accepted Answer

A) Fe 
B) Ne 
C) Xe 
D) N2 
E) CO 
A) Fe 
B) Ne 
C) Xe 
D) N2 
E) CO

Question 18

Which of the following substances would you predict to have the highest ΔHvap?

Accepted Answer

A) Xe 
B) C6H6 
C) SiF4 
D) Br2 
E) N2 
A) Xe 
B) C6H6 
C) SiF4 
D) Br2 
E) N2

Question 19

Determine the vapor pressure (in torr)of a substance at 36°C,whose normal boiling point is 84°C and has a ΔHvap of 22.1 kJ/mol.

Accepted Answer

A) 239 torr 
B) 31.8 torr 
C) 41.8 torr 
D) 147 torr 
E) 98 torr 
A) 239 torr 
B) 31.8 torr 
C) 41.8 torr 
D) 147 torr 
E) 98 torr

Question 20

How much energy is required to vaporize 98.6 g of ethanol (C2H5OH)at its boiling point,if its ΔHvap is 40.5 kJ/mol?

Accepted Answer

A) 86.7 kJ 
B) 11.5 kJ 
C) 18.9 kJ 
D) 52.8 kJ 
E) 39.9 kJ 
A) 86.7 kJ 
B) 11.5 kJ 
C) 18.9 kJ 
D) 52.8 kJ 
E) 39.9 kJ

Which is expected to have the largest dispersion forces?

Identify the compound that does not have dipole-dipole forces as its strongest force.

Identify the term used to describe the ability of a liquid to flow against gravity up a narrow tube.

Place the following substances in order of increasing boiling point. Ne Cl₂O₂

Determine ΔH_vap for a compound that has a measured vapor pressure of 24.3 torr at 273 K and 135 torr at 325 K.

Choose the substance with the lowest surface tension.

Ethyl chloride,C₂H₅Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes;its heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 20.0 g of ethyl chloride?

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm³.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Place the following substances in order of increasing vapor pressure at a given temperature. SF₆ SiH₄ SF₄

How many H^- ions are around each Na⁺ ion in NaH,which has a cubic unit cell with H^- ions on each corner and each face?

Based on the figure above,the boiling point of diethyl ether under an external pressure of 1.32 atm is approximately ________°C.

Place the following substances in order of decreasing vapor pressure at a given temperature. BeF₂ CH₃OH OF₂

Which of the following is considered an atomic solid?

Place the following substances in order of decreasing boiling point. H₂O N₂ CO

What fraction of an atom is at each corner a face-centered cubic unit cell?

Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a ΔH_vap of 32.1 kJ/mol.

Which of the following substances should have the highest melting point?

Which of the following substances would you predict to have the highest ΔH_vap?

Determine the vapor pressure (in torr)of a substance at 36°C,whose normal boiling point is 84°C and has a ΔH_vapof 22.1 kJ/mol.

How much energy is required to vaporize 98.6 g of ethanol (C₂H₅OH)at its boiling point,if its ΔH_vap is 40.5 kJ/mol?

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 11: Liquids, Solids, and Intermolecular Forces

Which is expected to have the largest dispersion forces?

Identify the compound that does not have dipole-dipole forces as its strongest force.

Identify the term used to describe the ability of a liquid to flow against gravity up a narrow tube.

Place the following substances in order of increasing boiling point. Ne Cl2 O2

Determine ΔHvap for a compound that has a measured vapor pressure of 24.3 torr at 273 K and 135 torr at 325 K.

Choose the substance with the lowest surface tension.

Ethyl chloride,C2H5Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes;its heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 20.0 g of ethyl chloride?

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm3.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Place the following substances in order of increasing vapor pressure at a given temperature. SF6 SiH4 SF4

How many H- ions are around each Na+ ion in NaH,which has a cubic unit cell with H- ions on each corner and each face?

Based on the figure above,the boiling point of diethyl ether under an external pressure of 1.32 atm is approximately ________°C.

Place the following substances in order of decreasing vapor pressure at a given temperature. BeF2 CH3OH OF2

Which of the following is considered an atomic solid?

Place the following substances in order of decreasing boiling point. H2O N2 CO

What fraction of an atom is at each corner a face-centered cubic unit cell?

Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a ΔHvap of 32.1 kJ/mol.

Which of the following substances should have the highest melting point?

Which of the following substances would you predict to have the highest ΔHvap?

Determine the vapor pressure (in torr)of a substance at 36°C,whose normal boiling point is 84°C and has a ΔHvap of 22.1 kJ/mol.

How much energy is required to vaporize 98.6 g of ethanol (C2H5OH)at its boiling point,if its ΔHvap is 40.5 kJ/mol?

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Place the following substances in order of increasing boiling point. Ne Cl₂O₂

Determine ΔH_vap for a compound that has a measured vapor pressure of 24.3 torr at 273 K and 135 torr at 325 K.

Ethyl chloride,C₂H₅Cl,is used as a local anesthetic.It works by cooling tissue as it vaporizes;its heat of vaporization is 26.4 kJ/mol.How much heat could be removed by 20.0 g of ethyl chloride?

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm³.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Place the following substances in order of increasing vapor pressure at a given temperature. SF₆ SiH₄ SF₄

How many H^- ions are around each Na⁺ ion in NaH,which has a cubic unit cell with H^- ions on each corner and each face?

Place the following substances in order of decreasing vapor pressure at a given temperature. BeF₂ CH₃OH OF₂

Place the following substances in order of decreasing boiling point. H₂O N₂ CO

Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has a ΔH_vap of 32.1 kJ/mol.

Which of the following substances would you predict to have the highest ΔH_vap?

Determine the vapor pressure (in torr)of a substance at 36°C,whose normal boiling point is 84°C and has a ΔH_vapof 22.1 kJ/mol.

How much energy is required to vaporize 98.6 g of ethanol (C₂H₅OH)at its boiling point,if its ΔH_vap is 40.5 kJ/mol?