Question 1

A face-centered cubic unit cell is the repeating unit in which type of crystal packing

Accepted Answer

A)  hexagonal close-packed 
B)  cubic close-packed 
C)  body centered 
D)  simple 
E)  all of the above 
A)  hexagonal close-packed 
B)  cubic close-packed 
C)  body centered 
D)  simple 
E)  all of the above

Question 2

Of the following, which is the dominant (strongest) type of intermolecular force present in RbCl(s)

Accepted Answer

A)  Dispersion 
B)  Dipole-dipole 
C)  Ion-dipole 
D)  Hydrogen bonding 
E)  Ionic 
A)  Dispersion 
B)  Dipole-dipole 
C)  Ion-dipole 
D)  Hydrogen bonding 
E)  Ionic

Question 3

Indicate all the types of intermolecular forces of attraction in HCl(g).

Accepted Answer

A)  Dispersion and Dipole-dipole 
B)  Dipole-dipole and Ionic 
C)  Ion-dipole and Hydrogen bonding 
D)  Hydrogen bonding and Dispersion 
E)  Dispersion 
A)  Dispersion and Dipole-dipole 
B)  Dipole-dipole and Ionic 
C)  Ion-dipole and Hydrogen bonding 
D)  Hydrogen bonding and Dispersion 
E)  Dispersion

Question 4

Suppose the atoms in a two-dimensional crystal have the following arrangement:   On the drawing below the lines connect four spheres which represents the unit cell of this crystal.

Accepted Answer

A) True 
 B)False

Question 5

Identify the dominant (strongest) type of intermolecular force present in H2S(g).

Accepted Answer

A)  Dispersion 
B)  Dipole-dipole 
C)  Ion-dipole 
D)  Hydrogen bonding 
E)  Ionic 
A)  Dispersion 
B)  Dipole-dipole 
C)  Ion-dipole 
D)  Hydrogen bonding 
E)  Ionic

Question 6

The vapor pressure of ethanol is 400 mmHg at 63.5$\circ$C. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol, in mmHg, at 34.9$\circ$C

Accepted Answer

A)  0.0099 mmHg 
B)  4.61 mmHg 
C)  100 mmHg 
D)  200 mmHg 
E)  1,510 mmHg 
A)  0.0099 mmHg 
B)  4.61 mmHg 
C)  100 mmHg 
D)  200 mmHg 
E)  1,510 mmHg

Question 7

The most space efficient arrangement of spheres is found in which type of unit cell

Accepted Answer

A)  face-centered cubic 
B)  body-centered cubic 
C)  simple cubic 
D)  face-centered cubic and body-centered cubic 
E)  body-centered cubic and simple cubic 
A)  face-centered cubic 
B)  body-centered cubic 
C)  simple cubic 
D)  face-centered cubic and body-centered cubic 
E)  body-centered cubic and simple cubic

Question 8

Which of the following phase changes is exothermic

Accepted Answer

A)  Sublimation 
B)  Condensation 
C)  Melting 
D)  Vaporization 
A)  Sublimation 
B)  Condensation 
C)  Melting 
D)  Vaporization

Question 9

Which one of the following substances is expected to have the lowest melting point

Accepted Answer

A)  BrI 
B)  CsI 
C)  LiI 
D)  NaI 
E)  RbI 
A)  BrI 
B)  CsI 
C)  LiI 
D)  NaI 
E)  RbI

A face-centered cubic unit cell is the repeating unit in which type of crystal packing

Of the following, which is the dominant (strongest) type of intermolecular force present in RbCl(s)

Indicate all the types of intermolecular forces of attraction in HCl(g).

Suppose the atoms in a two-dimensional crystal have the following arrangement: On the drawing below the lines connect four spheres which represents the unit cell of this crystal.

Identify the dominant (strongest) type of intermolecular force present in H₂S(g).

The vapor pressure of ethanol is 400 mmHg at 63.5^$\circ$C. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol, in mmHg, at 34.9^$\circ$C

The most space efficient arrangement of spheres is found in which type of unit cell

Which of the following phase changes is exothermic

Which one of the following substances is expected to have the lowest melting point

Chemistry: The Study of Change

Atoms Molecules and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Exam 11: Intermolecular Forces and Liquids and Solids

A face-centered cubic unit cell is the repeating unit in which type of crystal packing

Of the following, which is the dominant (strongest) type of intermolecular force present in RbCl(s)

Indicate all the types of intermolecular forces of attraction in HCl(g).

Suppose the atoms in a two-dimensional crystal have the following arrangement: On the drawing below the lines connect four spheres which represents the unit cell of this crystal.

Identify the dominant (strongest) type of intermolecular force present in H2S(g).

The vapor pressure of ethanol is 400 mmHg at 63.5 ∘\circ∘ C. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol, in mmHg, at 34.9 ∘\circ∘ C

The most space efficient arrangement of spheres is found in which type of unit cell

Which of the following phase changes is exothermic

Which one of the following substances is expected to have the lowest melting point

Chemistry: The Study of Change

Atoms Molecules and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Identify the dominant (strongest) type of intermolecular force present in H₂S(g).

The vapor pressure of ethanol is 400 mmHg at 63.5^$\circ$C. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol, in mmHg, at 34.9^$\circ$C