Question 1

Which of these substances is not polar?

Accepted Answer

A) H2O 
B) SO2 
C) HF 
D) CCl4 
E) CH3F

Question 2

What are the units of molarity?

Accepted Answer

A) Grams per mole 
B) Grams per liter 
C) Moles per liter 
D) Molecules per liter 
E) Molecules per mole

Question 3

Which of these substances would have the highest vapor pressure?

Accepted Answer

A) CH3OH 
B) C2H6 
C) SO2 
D) H2O 
E) NH3

Question 4

Which of these substances contains hydrogen bonds?

Accepted Answer

A) HBr 
B) CH3F 
C) CH3OH 
D) CH3OCH3 
E) SiH4

Question 5

Which substance has the greatest dispersion force?

Accepted Answer

A) CH4 
B) F2 
C) He 
D) Cl2 
E) O2

Question 6

What is the concentration of a solution made by dissolving 90.0 g of acetic acid, CH3COOH, in water to give .250 L of solution? (molar mass CH3COOH = 60.0 g\mol)

Accepted Answer

A) 1.20 M 
B) 2.00 M 
C) 6.00 M 
D) 0.600 M 
E) 0.360 M

Question 7

Molarity is defined to be moles of ________ per liter of __________.

Accepted Answer

A) solvent, solution 
B) solution, solvent 
C) solute, solution 
D) solution, solute 
E) none of the above

Question 8

Liquids which vaporize easily and have high vapor pressures are known as ____.

Accepted Answer

A) volatile liquids 
B) nonvolatile liquids 
C) explosive liquids 
D) cohesive liquids 
E) adhesive liquids

Question 9

What fraction of water on the planet is in readily usable forms like streams and lakes?

Accepted Answer

A) 98% 
B) 47% 
C) 2.6% 
D) 14% 
E) 0.014%

Question 10

Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol, C2H4(OH)2 are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C2H4(OH)2 = 62 g\mol)

Accepted Answer

A) 222 g 
B) 43.7 g 
C) 3.58 g 
D) 2.69 g 
E) 0.157 g

Question 11

Which substance has the greatest dispersion force?

Accepted Answer

A) CH3CH2CH2CH3 
B) CH3CH2CH2CH2CH3 
C) CH3CH2CH2CH2CH2CH3 
D) CH3CH2CH2CH2CH2CH2CH3 
E) The dispersion force is about the same for all of the listed molecules.

Question 12

Which of these factors do not affect the melting point of a substance?

Accepted Answer

A) Cohesive forces 
B) Temperature 
C) Molecular motion 
D) Molecular structure 
E) All of these will affect the melting point.

Question 13

Which of these is a benefit of water's unique freezing properties?

Accepted Answer

A) Water insulates lakes which freeze on the surface in the winter. 
B) Icebergs sink to the bottom of the ocean cooling volcanic eruptions. 
C) Water is so small that it contributes little to erosion. 
D) Freezing of cells allows for extended preservation of the cells. 
E) Flash freezing results in the destruction of a food sample.

Question 14

Which of these substances would have the highest vapor pressure?

Accepted Answer

A) CH3Cl 
B) NH3 
C) CH4 
D) H2O 
E) HBr

Question 15

Which of these is an inorganic contaminant?

Accepted Answer

A) benzene 
B) carbon tetrachloride 
C) TCE 
D) nitrates 
E) gasoline

Question 16

Which of the statements about solids is\ are correct ?
I. Solids have lower kinetic energy than liquids.
II. Molecules within solids are in fixed positions.
III. The shape of a solid is independent of the container which holds it.

Accepted Answer

A) I only 
B) II only 
C) I and II 
D) II and III 
E) I, II,  and III

Question 17

Which of these statements about liquids is \are  correct?
I. Increased molecular motion will result in increased rate of evaporation.
II. Liquids will take the shape of their container.
III. Liquids have relatively low compressibility.

Accepted Answer

A) I only 
B) II only 
C) I and II 
D) II and III 
E) I, II, and III

Question 18

The dominant intermolecular attractive force between CH3Cl molecules is:

Accepted Answer

A) dipole forces. 
B) dispersion forces. 
C) hydrogen bonding. 
D) London forces. 
E) volatile forces.

Question 19

Which of these is not a source for chemical contamination of ground water?

Accepted Answer

A) human waste 
B) pesticides 
C) industrial wastes 
D) atmospheric emissions 
E) household solvents

Question 20

Which of these statements about boiling point is \are  incorrect ?
I. Boiling occurs when there is  sufficient molecular energy to convert a liquid to a gas.
II. The stronger the cohesive forces the higher the boiling point.
III. Boiling results in the cleavage of chemical bonds.

Accepted Answer

A) I only 
B) II only 
C) III only 
D) I and III 
E) II and III

Exam 12: The Liquids and Solids Around Us: Especially Water

Which of these substances is not polar?

What are the units of molarity?

Which of these substances would have the highest vapor pressure?

Which of these substances contains hydrogen bonds?

Which substance has the greatest dispersion force?

What is the concentration of a solution made by dissolving 90.0 g of acetic acid, CH₃COOH, in water to give .250 L of solution? (molar mass CH₃COOH = 60.0 g\mol)

Molarity is defined to be moles of per liter of __.

Liquids which vaporize easily and have high vapor pressures are known as ____.

What fraction of water on the planet is in readily usable forms like streams and lakes?

Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol, C₂H₄(OH) ₂ are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C₂H₄(OH) ₂ = 62 g\mol)

Which substance has the greatest dispersion force?

Which of these factors do not affect the melting point of a substance?

Which of these is a benefit of water's unique freezing properties?

Which of these substances would have the highest vapor pressure?

Which of these is an inorganic contaminant?

Which of the statements about solids is\ are correct ? I. Solids have lower kinetic energy than liquids. II. Molecules within solids are in fixed positions. III. The shape of a solid is independent of the container which holds it.

Which of these statements about liquids is \are correct? I. Increased molecular motion will result in increased rate of evaporation. II. Liquids will take the shape of their container. III. Liquids have relatively low compressibility.

The dominant intermolecular attractive force between CH₃Cl molecules is:

Which of these is not a source for chemical contamination of ground water?

Which of these statements about boiling point is \are incorrect ? I. Boiling occurs when there is sufficient molecular energy to convert a liquid to a gas. II. The stronger the cohesive forces the higher the boiling point. III. Boiling results in the cleavage of chemical bonds.

Exam 12: The Liquids and Solids Around Us: Especially Water

Which of these substances is not polar?

What are the units of molarity?

Which of these substances would have the highest vapor pressure?

Which of these substances contains hydrogen bonds?

Which substance has the greatest dispersion force?

What is the concentration of a solution made by dissolving 90.0 g of acetic acid, CH3COOH, in water to give .250 L of solution? (molar mass CH3COOH = 60.0 g\mol)

Molarity is defined to be moles of ________ per liter of __________.

Liquids which vaporize easily and have high vapor pressures are known as ____.

What fraction of water on the planet is in readily usable forms like streams and lakes?

Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol, C2H4(OH) 2 are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C2H4(OH) 2 = 62 g\mol)

Which substance has the greatest dispersion force?

Which of these factors do not affect the melting point of a substance?

Which of these is a benefit of water's unique freezing properties?

Which of these substances would have the highest vapor pressure?

Which of these is an inorganic contaminant?

Which of the statements about solids is\ are correct ? I. Solids have lower kinetic energy than liquids. II. Molecules within solids are in fixed positions. III. The shape of a solid is independent of the container which holds it.

Which of these statements about liquids is \are correct? I. Increased molecular motion will result in increased rate of evaporation. II. Liquids will take the shape of their container. III. Liquids have relatively low compressibility.

The dominant intermolecular attractive force between CH3Cl molecules is:

Which of these is not a source for chemical contamination of ground water?

Which of these statements about boiling point is \are incorrect ? I. Boiling occurs when there is sufficient molecular energy to convert a liquid to a gas. II. The stronger the cohesive forces the higher the boiling point. III. Boiling results in the cleavage of chemical bonds.

What is the concentration of a solution made by dissolving 90.0 g of acetic acid, CH₃COOH, in water to give .250 L of solution? (molar mass CH₃COOH = 60.0 g\mol)

Molarity is defined to be moles of per liter of __.

Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol, C₂H₄(OH) ₂ are in 394 mL of a 9.087 M solution of antifreeze? (molar mass C₂H₄(OH) ₂ = 62 g\mol)

The dominant intermolecular attractive force between CH₃Cl molecules is: