Question 1

How many grams of glucose (C6H12O6)are contained in 555 mL of a 1.77 M glucose solution?

Accepted Answer

A) 0.982 g C6H12O6 
B) 177 g C6H12O6 
C) 0.555 g C6H12O6 
D) 0.177 g C6H12O6 
A) 0.982 g C6H12O6 
B) 177 g C6H12O6 
C) 0.555 g C6H12O6 
D) 0.177 g C6H12O6

Question 2

Which substance is a nonelectrolyte?

Accepted Answer

A) NaCl 
B) (NH4)2SO4 
C) H2O2 
D) KOH 
A) NaCl 
B) (NH4)2SO4 
C) H2O2 
D) KOH

Question 3

An aqueous solution with the label 0.25 M sucrose contains 0.25 grams of sucrose in every 1 L of solution.

Accepted Answer

A) True 
 B)False

Question 4

Which solution has the highest boiling point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described above have the same boiling point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described above have the same boiling point.

Question 5

Which pair of compounds will form a solution?

Accepted Answer

A) Benzene (C6H6)and hexane (C6H14) 
B) Na2SO4 and benzene (C6H6) 
C) NaCl and hexane (C6H14) 
D) H2O and CCl4 
E) More than one of the combinations above will form solutions. 
A) Benzene (C6H6)and hexane (C6H14) 
B) Na2SO4 and benzene (C6H6) 
C) NaCl and hexane (C6H14) 
D) H2O and CCl4 
E) More than one of the combinations above will form solutions.

Question 6

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?

Accepted Answer

A) 1.00 L 
B) 0.769 L 
C) 0.975 L 
D) 67.2 L 
A) 1.00 L 
B) 0.769 L 
C) 0.975 L 
D) 67.2 L

Question 7

What interactions are responsible for holding dissolved Cl- ions in an aqueous solution?

Accepted Answer

A) ion-ion attractions between K+ and Cl- ions 
B) ion-dipole attractions between Cl- ions and the hydrogen atoms of water 
C) ion-dipole attractions between Cl- ions and the oxygen atom of water 
D) hydrogen bonding between the Cl- ions and water 
A) ion-ion attractions between K+ and Cl- ions 
B) ion-dipole attractions between Cl- ions and the hydrogen atoms of water 
C) ion-dipole attractions between Cl- ions and the oxygen atom of water 
D) hydrogen bonding between the Cl- ions and water

Question 8

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 9

Which solution has the highest freezing point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.25 mol of KCl in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of KCl in 4.00 kg of water. 
D) A solution formed by dissolving 0.25 mol of KCl in 0.50 kg of water. 
E) All of the solutions described above have the same freezing point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.25 mol of KCl in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of KCl in 4.00 kg of water. 
D) A solution formed by dissolving 0.25 mol of KCl in 0.50 kg of water. 
E) All of the solutions described above have the same freezing point.

Question 10

How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?

Accepted Answer

A) 8.3 mL HCl solution 
B) 7, 500 mL HCl solution 
C) 230 mL HCl solution 
D) 240 mL HCl solution 
E) 8.6 mL HCl solution 
A) 8.3 mL HCl solution 
B) 7, 500 mL HCl solution 
C) 230 mL HCl solution 
D) 240 mL HCl solution 
E) 8.6 mL HCl solution

Question 11

Which solution has the lowest boiling point?

Accepted Answer

A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described above have the same boiling point. 
A) A solution formed by dissolving 0.75 mol of KCl in 1.00 kg of water. 
B) A solution formed by dissolving 0.75 mol of glucose (C6H12O6)in 1.00 kg of water. 
C) A solution formed by dissolving 0.75 mol of Ca(NO3)2 in 1.00 kg of water. 
D) A solution formed by dissolving 0.75 mol of Na3PO4 in 1.00 kg of water. 
E) All of the solutions described above have the same boiling point.

Question 12

What is the molarity of a 25.0% (v/v)aqueous isopropyl alcohol solution? The density of isopropyl alcohol (C3H8O, molar mass 60.09 g/mol)is 0.786 g/mL.

Accepted Answer

A) 0.529 M 
B) 1.18 M 
C) 0.327 M 
D) 3.27 M 
A) 0.529 M 
B) 1.18 M 
C) 0.327 M 
D) 3.27 M

Question 13

The ionic compound CaCO3 is soluble in water.

Accepted Answer

A) True 
 B)False

Question 14

When calculating the concentration of a solution in units of parts per million, the "parts" must be expressed in units of grams.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

In solution formation, solvation always releases more energy than that required to separate particles, so the overall process is always exothermic.

Accepted Answer

A) True 
 B)False

Question 17

A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?

Accepted Answer

A) 41.8% (v/v)ethanol 
B) 0.418% (v/v)ethanol 
C) 29.5% (v/v)ethanol 
D) 0.295% (v/v)ethanol 
E) 70.5% (v/v)ethanol 
A) 41.8% (v/v)ethanol 
B) 0.418% (v/v)ethanol 
C) 29.5% (v/v)ethanol 
D) 0.295% (v/v)ethanol 
E) 70.5% (v/v)ethanol

Question 18

Which of the following statements concerning a solution is NOT true?

Accepted Answer

A) A solution is a heterogeneous mixture of two or more pure substances. 
B) A solution is composed of a solvent and one or more solutes; the solute(s)dissolve in the solvent. 
C) A solution has its components uniformly distributed. 
D) A solution is likely to form when the solute(s)and the solvent have similar polarities. 
A) A solution is a heterogeneous mixture of two or more pure substances. 
B) A solution is composed of a solvent and one or more solutes; the solute(s)dissolve in the solvent. 
C) A solution has its components uniformly distributed. 
D) A solution is likely to form when the solute(s)and the solvent have similar polarities.

Question 19

The solubility of Ba(NO3)2 in water is lower at 25 °C than at 50 °C.

Accepted Answer

A) True 
 B)False

Question 20

For most ionic and molecular solids, solubility generally increases as temperature increases.

Accepted Answer

A) True 
 B)False

Exam 8: Solutions

How many grams of glucose (C6H12O6)are contained in 555 mL of a 1.77 M glucose solution?

Which substance is a nonelectrolyte?

An aqueous solution with the label 0.25 M sucrose contains 0.25 grams of sucrose in every 1 L of solution.

Which solution has the highest boiling point?

Which pair of compounds will form a solution?

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?

What interactions are responsible for holding dissolved Cl- ions in an aqueous 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?

Which solution has the highest freezing point?

How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?

Which solution has the lowest boiling point?

What is the molarity of a 25.0% (v/v)aqueous isopropyl alcohol solution? The density of isopropyl alcohol (C3H8O, molar mass 60.09 g/mol)is 0.786 g/mL.

The ionic compound CaCO3 is soluble in water.

When calculating the concentration of a solution in units of parts per million, the "parts" must be expressed in units of grams.

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

In solution formation, solvation always releases more energy than that required to separate particles, so the overall process is always exothermic.

A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?

Which of the following statements concerning a solution is NOT true?

The solubility of Ba(NO3)2 in water is lower at 25 °C than at 50 °C.

For most ionic and molecular solids, solubility generally increases as temperature increases.

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

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

How many grams of glucose (C₆H₁₂O₆)are contained in 555 mL of a 1.77 M glucose solution?

What is the maximum volume of a 0.788 M CaCl₂ solution that can be prepared using 85.3 g CaCl₂?

What interactions are responsible for holding dissolved Cl^- ions in an aqueous solution?

What is the molarity of a 25.0% (v/v)aqueous isopropyl alcohol solution? The density of isopropyl alcohol (C₃H₈O, molar mass 60.09 g/mol)is 0.786 g/mL.

The ionic compound CaCO₃ is soluble in water.

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

The solubility of Ba(NO₃)₂ in water is lower at 25 °C than at 50 °C.