Question 1

Which of the following aqueous solutions would be expected to freeze at the lowest temperature?

Accepted Answer

A) 1 molal KNO3 
B) 1 molal NaCl 
C) 1 molal CaCl2 
D) 1 molal C6H12O6 (fructose) 
E) All of these solutions would freeze at the same temperature. 
A) 1 molal KNO3 
B) 1 molal NaCl 
C) 1 molal CaCl2 
D) 1 molal C6H12O6 (fructose) 
E) All of these solutions would freeze at the same temperature.

Question 2

What is the mass percent of a sodium fluoride solution prepared by dissolving 0.64 moles of sodium fluoride into 63.5 grams of water?

Accepted Answer

A) 26.9% 
B) 42.3% 
C) 70.3% 
D) 29.7% 
E) none of the above 
A) 26.9% 
B) 42.3% 
C) 70.3% 
D) 29.7% 
E) none of the above

Question 3

Which of the following substances is NOT a solution?

Accepted Answer

A) air 
B) brass 
C) vodka 
D) copper 
E) All of the above are solutions. 
A) air 
B) brass 
C) vodka 
D) copper 
E) All of the above are solutions.

Question 4

Air is an example of a gaseous solution.

Accepted Answer

A) True 
 B)False

Question 5

Osmosis is the process in which a solvent moves from an area of low solute concentration to an area of high solute concentration.

Accepted Answer

A) True 
 B)False

Question 6

How many grams of KCl are present in 75.0 mL of 2.10 M KCI?

Accepted Answer

A) 5.59 
B) 117 
C) 2.66 
D) 11.7 
E) none of the above 
A) 5.59 
B) 117 
C) 2.66 
D) 11.7 
E) none of the above

Question 7

Adding a nonvolatile solute to a liquid will cause boiling point depression and freezing point elevation.

Accepted Answer

A) True 
 B)False

Question 8

Warm beer goes flat quicker than cold beer.

Accepted Answer

A) True 
 B)False

Question 9

What is the molality of a solution made by dissolving  14.7g of C6H12O6 into   of water? Assume the density of water is 1.00g/mL .

Accepted Answer

A) 0.544 
B) 0.0816 
C) 10.2 
D) 0.980 
E) none of the above 
A) 0.544 
B) 0.0816 
C) 10.2 
D) 0.980 
E) none of the above

Question 10

The molarity of a solution prepared by dissolving 15.0 grams of NaCl in 1000 mL water is 0.15M .

Accepted Answer

A) True 
 B)False

Question 11

Calculate the molarity of a KCl solution prepared by dissolving 0.525 moles of KCl in 250.0 mL of water.

Accepted Answer

A) 0.476 
B) 0.00210 
C) 2.10 
D) 2.02 
E) none of the above 
A) 0.476 
B) 0.00210 
C) 2.10 
D) 2.02 
E) none of the above

Question 12

The oxygen in the air we breath is classified as:

Accepted Answer

A) the solute in a homogeneous gas mixture. 
B) the solvent in a homogeneous gas mixture. 
C) the solute in a heterogeneous gas-liquid mixture. 
D) the solvent in a simple mixture. 
E) none of the above 
A) the solute in a homogeneous gas mixture. 
B) the solvent in a homogeneous gas mixture. 
C) the solute in a heterogeneous gas-liquid mixture. 
D) the solvent in a simple mixture. 
E) none of the above

Question 13

If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution,what is the concentration of sodium chloride in the diluted solution?

Accepted Answer

A) 0.250 M 
B) 0.450 M 
C) 0.500 M 
D) 1.13 M 
E) none of the above 
A) 0.250 M 
B) 0.450 M 
C) 0.500 M 
D) 1.13 M 
E) none of the above

Question 14

Upon completing a dilution from a stock solution,you will always have more volume of solution than you started with and it will have a lower concentration than the stock solution.

Accepted Answer

A) True 
 B)False

Question 15

The solubility of solids in water generally increases with increasing temperature.

Accepted Answer

A) True 
 B)False

Question 16

Calculate the molality of a solution prepared by dissolving 19.9 g of KCl in   of water.

Accepted Answer

A) 0.200 
B) 0.356 
C) 4.99 
D) 0.267 
E) none of the above 
A) 0.200 
B) 0.356 
C) 4.99 
D) 0.267 
E) none of the above

Question 17

Molarity is defined as the moles of solute per liter of solution.

Accepted Answer

A) True 
 B)False

Question 18

Salt water is an example of a strong electrolyte solution.

Accepted Answer

A) True 
 B)False

Question 19

The solubility of gases in water increases with increasing pressure above the water.

Accepted Answer

A) True 
 B)False

Question 20

Hexane,a nonpolar solvent,will dissolve which of the following substances?

Accepted Answer

A) sodium chloride 
B) oil 
C) ammonium acetate 
D) vinegar (acetic acid) 
E) none of the above 
A) sodium chloride 
B) oil 
C) ammonium acetate 
D) vinegar (acetic acid) 
E) none of the above

Which of the following aqueous solutions would be expected to freeze at the lowest temperature?

What is the mass percent of a sodium fluoride solution prepared by dissolving 0.64 moles of sodium fluoride into 63.5 grams of water?

Which of the following substances is NOT a solution?

Air is an example of a gaseous solution.

Osmosis is the process in which a solvent moves from an area of low solute concentration to an area of high solute concentration.

How many grams of KCl are present in 75.0 mL of 2.10 M KCI?

Adding a nonvolatile solute to a liquid will cause boiling point depression and freezing point elevation.

Warm beer goes flat quicker than cold beer.

What is the molality of a solution made by dissolving 14.7g of C₆H₁₂O₆ into of water? Assume the density of water is 1.00g/mL .

The molarity of a solution prepared by dissolving 15.0 grams of NaCl in 1000 mL water is 0.15M .

Calculate the molarity of a KCl solution prepared by dissolving 0.525 moles of KCl in 250.0 mL of water.

The oxygen in the air we breath is classified as:

If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution,what is the concentration of sodium chloride in the diluted solution?

Upon completing a dilution from a stock solution,you will always have more volume of solution than you started with and it will have a lower concentration than the stock solution.

The solubility of solids in water generally increases with increasing temperature.

Calculate the molality of a solution prepared by dissolving 19.9 g of KCl in of water.

Molarity is defined as the moles of solute per liter of solution.

Salt water is an example of a strong electrolyte solution.

The solubility of gases in water increases with increasing pressure above the water.

Hexane,a nonpolar solvent,will dissolve which of the following substances?

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Exam 13: Solutions

Which of the following aqueous solutions would be expected to freeze at the lowest temperature?

What is the mass percent of a sodium fluoride solution prepared by dissolving 0.64 moles of sodium fluoride into 63.5 grams of water?

Which of the following substances is NOT a solution?

Air is an example of a gaseous solution.

Osmosis is the process in which a solvent moves from an area of low solute concentration to an area of high solute concentration.

How many grams of KCl are present in 75.0 mL of 2.10 M KCI?

Adding a nonvolatile solute to a liquid will cause boiling point depression and freezing point elevation.

Warm beer goes flat quicker than cold beer.

What is the molality of a solution made by dissolving 14.7g of C6H12O6 into of water? Assume the density of water is 1.00g/mL .

The molarity of a solution prepared by dissolving 15.0 grams of NaCl in 1000 mL water is 0.15M .

Calculate the molarity of a KCl solution prepared by dissolving 0.525 moles of KCl in 250.0 mL of water.

The oxygen in the air we breath is classified as:

If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution,what is the concentration of sodium chloride in the diluted solution?

Upon completing a dilution from a stock solution,you will always have more volume of solution than you started with and it will have a lower concentration than the stock solution.

The solubility of solids in water generally increases with increasing temperature.

Calculate the molality of a solution prepared by dissolving 19.9 g of KCl in of water.

Molarity is defined as the moles of solute per liter of solution.

Salt water is an example of a strong electrolyte solution.

The solubility of gases in water increases with increasing pressure above the water.

Hexane,a nonpolar solvent,will dissolve which of the following substances?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

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What is the molality of a solution made by dissolving 14.7g of C₆H₁₂O₆ into of water? Assume the density of water is 1.00g/mL .