Question 1

Nonpolar compounds are soluble in ________.

Accepted Answer

A) ionic compounds 
B) electrolytes 
C) polar solvents 
D) nonpolar solvents 
A) ionic compounds 
B) electrolytes 
C) polar solvents 
D) nonpolar solvents D

Question 2

The attraction of an ion with a dipole in a molecule is called ________.

Accepted Answer

A) a dipole-dipole interaction 
B) an ion-dipole interaction 
C) hydrogen bonding 
D) London dispersion forces 
E) van der Waals forces 
A) a dipole-dipole interaction 
B) an ion-dipole interaction 
C) hydrogen bonding 
D) London dispersion forces 
E) van der Waals forces B

Question 3

What is the molarity of a solution made by dissolving 36.29 g of NaCl in 2.30 L of solution?

Accepted Answer

A) 15.78 M NaCl 
B) 0.0634 M NaCl 
C) 0.270 M NaCl 
D) 2.70 M NaCl 
A) 15.78 M NaCl 
B) 0.0634 M NaCl 
C) 0.270 M NaCl 
D) 2.70 M NaCl C

Question 4

The solubility of helium gas in water is greater at 25 °C than at 50 °C.

Accepted Answer

A) True 
 B)False

Question 5

What is the molarity of a 11.5% (w/v)glucose (C6H12O6,molar mass 180.16 g/mol)solution?

Accepted Answer

A) 0.0638 M 
B) 0.638 M 
C) 1.15 M 
D) 1.76 M 
A) 0.0638 M 
B) 0.638 M 
C) 1.15 M 
D) 1.76 M

Question 6

A sample of seawater contains 1.3 g of calcium ions in 3,100 kg of solution. What is the calcium ion concentration of this solution in units of ppm?

Accepted Answer

A) 4.2 × 10-4 ppm Ca2+ ions 
B) 0.42 ppm Ca2+ ions 
C) 420 ppm Ca2+ ions 
D) 4.0 ppm Ca2+ ions 
E) 4.0 × 103 ppm Ca2+ ions 
A) 4.2 × 10-4 ppm Ca2+ ions 
B) 0.42 ppm Ca2+ ions 
C) 420 ppm Ca2+ ions 
D) 4.0 ppm Ca2+ ions 
E) 4.0 × 103 ppm Ca2+ ions

Question 7

Compared to the pure solvent,the freezing point depression caused by adding 0.05 mol of sucrose to 1.0 L of water is greater than the boiling point elevation of the same solution.

Accepted Answer

A) True 
 B)False

Question 8

Which solution contains the smallest number of moles of sucrose (C12H22O11,molar mass = 342.30 g/mol)?

Accepted Answer

A) 2,000 mL of a 5.0 × 10-5% (w/v)sucrose solution 
B) 2,000 mL of a 5.0 ppm sucrose solution 
C) 20 mL of a 5.0 M sucrose solution 
D) All of the solutions contain the same number of moles of sucrose. 
A) 2,000 mL of a 5.0 × 10-5% (w/v)sucrose solution 
B) 2,000 mL of a 5.0 ppm sucrose solution 
C) 20 mL of a 5.0 M sucrose solution 
D) All of the solutions contain the same number of moles of sucrose.

Question 9

The ionic compound (NH4)2SO4 is soluble in water.

Accepted Answer

A) True 
 B)False

Question 10

In order for a solution to conduct electricity it must contain ________.

Accepted Answer

The answer of In order for a solution to conduct...

Question 11

Which of the following statements best describes the solubility of a substance?

Accepted Answer

A) The ability of the substance to dissolve in water 
B) The ability of the substance to dissociate into ions when dissolved in water 
C) The maximum amount of a substance that can dissolve in a specific amount of solvent 
D) The mass of solvent necessary to completely dissolve 100 g of the substance 
A) The ability of the substance to dissolve in water 
B) The ability of the substance to dissociate into ions when dissolved in water 
C) The maximum amount of a substance that can dissolve in a specific amount of solvent 
D) The mass of solvent necessary to completely dissolve 100 g of the substance

Question 12

Which solution has the greatest mass of solute?

Accepted Answer

A) 2.00 L of a 0.75 M NaCl solution 
B) 2.00 L of a 0.75 M CaCl2 solution 
C) 2.00 L of a 0.75 M Ca(NO3)2 solution 
D) 2.00 L of a 0.75 M Na2CO3 solution 
E) All of the solutions have the same mass of solute. 
A) 2.00 L of a 0.75 M NaCl solution 
B) 2.00 L of a 0.75 M CaCl2 solution 
C) 2.00 L of a 0.75 M Ca(NO3)2 solution 
D) 2.00 L of a 0.75 M Na2CO3 solution 
E) All of the solutions have the same mass of solute.

Question 13

Which of the following would increase the solubility of gaseous O2 in water?

Accepted Answer

A) Decreasing the temperature of the solution 
B) Increasing the temperature of the solution 
C) Decreasing the pressure of the solution 
D) Increasing the pressure of the solution 
E) Both A and D are correct 
A) Decreasing the temperature of the solution 
B) Increasing the temperature of the solution 
C) Decreasing the pressure of the solution 
D) Increasing the pressure of the solution 
E) Both A and D are correct

Question 14

What is the molarity of a solution made by dissolving 3.09 moles of NaCl in 1.50 L of solution?

Accepted Answer

A) 4.64 M NaCl 
B) 4.85 M NaCl 
C) 2.06 M NaCl 
D) 0.673 M NaCl 
A) 4.64 M NaCl 
B) 4.85 M NaCl 
C) 2.06 M NaCl 
D) 0.673 M NaCl

Question 15

Any mixture of two or more components is a solution.

Accepted Answer

A) True 
 B)False

Question 16

A 6.10 M NaCl solution is made by adding 356 g of NaCl to a flask that contains 1.00 L of water.

Accepted Answer

A) True 
 B)False

Question 17

A solution can be made less concentrated by adding additional solvent.

Accepted Answer

A) True 
 B)False

Question 18

A liquid solution that contains a nonvolatile solute has a higher boiling point than the solvent alone.

Accepted Answer

A) True 
 B)False

Question 19

Water solubility for neutral molecules occurs only for small polar molecules or those with many O or N atoms that can hydrogen bond to water.

Accepted Answer

A) True 
 B)False

Question 20

What is the molarity of a solution made by dissolving 4.88 g of KCl in 423 mL of solution?

Accepted Answer

A) 0.0115 M KCl 
B) 11.5 M KCl 
C) 1.55 × 10-4 M KCl 
D) 0.155 M KCl 
A) 0.0115 M KCl 
B) 11.5 M KCl 
C) 1.55 × 10-4 M KCl 
D) 0.155 M KCl

Exam 8: Solutions

Nonpolar compounds are soluble in ________.

The attraction of an ion with a dipole in a molecule is called ________.

What is the molarity of a solution made by dissolving 36.29 g of NaCl in 2.30 L of solution?

The solubility of helium gas in water is greater at 25 °C than at 50 °C.

What is the molarity of a 11.5% (w/v)glucose (C6H12O6,molar mass 180.16 g/mol)solution?

A sample of seawater contains 1.3 g of calcium ions in 3,100 kg of solution. What is the calcium ion concentration of this solution in units of ppm?

Compared to the pure solvent,the freezing point depression caused by adding 0.05 mol of sucrose to 1.0 L of water is greater than the boiling point elevation of the same solution.

Which solution contains the smallest number of moles of sucrose (C12H22O11,molar mass = 342.30 g/mol)?

The ionic compound (NH4)2SO4 is soluble in water.

In order for a solution to conduct electricity it must contain ________.

Which of the following statements best describes the solubility of a substance?

Which solution has the greatest mass of solute?

Which of the following would increase the solubility of gaseous O2 in water?

What is the molarity of a solution made by dissolving 3.09 moles of NaCl in 1.50 L of solution?

Any mixture of two or more components is a solution.

A 6.10 M NaCl solution is made by adding 356 g of NaCl to a flask that contains 1.00 L of water.

A solution can be made less concentrated by adding additional solvent.

A liquid solution that contains a nonvolatile solute has a higher boiling point than the solvent alone.

Water solubility for neutral molecules occurs only for small polar molecules or those with many O or N atoms that can hydrogen bond to water.

What is the molarity of a solution made by dissolving 4.88 g of KCl in 423 mL of solution?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

What is the molarity of a 11.5% (w/v)glucose (C₆H₁₂O₆,molar mass 180.16 g/mol)solution?

Which solution contains the smallest number of moles of sucrose (C₁₂H₂₂O₁₁,molar mass = 342.30 g/mol)?

The ionic compound (NH₄)₂SO₄ is soluble in water.

Which of the following would increase the solubility of gaseous O₂ in water?