Question 1

Which accurately characterizes all nonelectrolyte solutions?

Accepted Answer

A)  Nonelectrolyte solutions contain molecules. 
B)  Nonelectrolyte solutions conduct electricity. 
C)  Nonelectrolyte solutions react with other solutions. 
D)  Nonelectrolyte solutions do not conduct electricity. 
E)  Nonelectrolyte solutions conduct heat. 
A)  Nonelectrolyte solutions contain molecules. 
B)  Nonelectrolyte solutions conduct electricity. 
C)  Nonelectrolyte solutions react with other solutions. 
D)  Nonelectrolyte solutions do not conduct electricity. 
E)  Nonelectrolyte solutions conduct heat.

Question 2

Sodium hydroxide is water soluble.

Accepted Answer

A) True 
 B)False

Question 3

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH)2. Find the concentration of nitric acid in the resulting solution.

Accepted Answer

A)  0.0429 M 
B)  0.140 M 
C)  0.172 M 
D)  0.203 M 
E)  0.773 M 
A)  0.0429 M 
B)  0.140 M 
C)  0.172 M 
D)  0.203 M 
E)  0.773 M

Question 4

If aqueous solutions of ammonium sulfide and copper(II) nitrate are mixed, which insoluble precipitate is formed?

Accepted Answer

A)  CuS 
B)  Cu2S 
C)  NH4NO3 
D)  NH4(NO3)2 
E)  CuSO4 
A)  CuS 
B)  Cu2S 
C)  NH4NO3 
D)  NH4(NO3)2 
E)  CuSO4

Question 5

Based on the solubility rules, which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?

Accepted Answer

A)  ZnCl2 will precipitate; Mg2+ and SO42- are spectator ions. 
B)  ZnSO4 will precipitate; Mg2+ and Cl- are spectator ions. 
C)  MgSO4 will precipitate; Zn2+ and Cl- are spectator ions. 
D)  MgCl2 will precipitate; Zn2+ and SO42- are spectator ions. 
E)  No precipitate will form. 
A)  ZnCl2 will precipitate; Mg2+ and SO42- are spectator ions. 
B)  ZnSO4 will precipitate; Mg2+ and Cl- are spectator ions. 
C)  MgSO4 will precipitate; Zn2+ and Cl- are spectator ions. 
D)  MgCl2 will precipitate; Zn2+ and SO42- are spectator ions. 
E)  No precipitate will form.

Question 6

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3. If 1.573 g of a AgBr precipitate forms, what is the percent by mass of Br in the original compound?

Accepted Answer

A)  62.13% 
B)  75.72% 
C)  56.19% 
D)  42.55% 
E)  37.87% 
A)  62.13% 
B)  75.72% 
C)  56.19% 
D)  42.55% 
E)  37.87%

Question 7

If aqueous solutions of Na2CO3 and BaCl2 are mixed, which insoluble precipitate is formed?

Accepted Answer

A)  Ba2CO3 
B)  BaCO3 
C)  NaCl 
D)  NaCl2 
E)  BaO 
A)  Ba2CO3 
B)  BaCO3 
C)  NaCl 
D)  NaCl2 
E)  BaO

Question 8

Calcium nitrate tetrahydrate dissolves in warm water to the extent of 266 g per 100. cm3. What is the concentration of nitrate ions in this solution?

Accepted Answer

A)  32.4 M 
B)  22.5 M 
C)  11.3 M 
D)  16.2 M 
E)  8.10 M 
A)  32.4 M 
B)  22.5 M 
C)  11.3 M 
D)  16.2 M 
E)  8.10 M

Question 9

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Accepted Answer

A)  8.71 mL 
B)  21.8 mL 
C)  43.5 mL 
D)  87.1 mL 
E)  174 mL 
A)  8.71 mL 
B)  21.8 mL 
C)  43.5 mL 
D)  87.1 mL 
E)  174 mL

Question 10

The diagram below represents the final mixture corresponding to which chemical process? (Each sphere represents 1 mole of ions.)

Accepted Answer

A)  Six moles of sodium metal are added to six moles of hydrochloric acid. 
B)  Six moles of magnesium metal are added to six moles of hydrochloric acid. 
C)  Six moles of aluminum metal are added to twelve moles of hydrochloric acid. 
D)  Twelve moles of sodium metal are added to twelve moles of hydrochloric acid. 
E)  Twelve moles of magnesium metal are added to twelve moles of hydrochloric acid. 
A)  Six moles of sodium metal are added to six moles of hydrochloric acid. 
B)  Six moles of magnesium metal are added to six moles of hydrochloric acid. 
C)  Six moles of aluminum metal are added to twelve moles of hydrochloric acid. 
D)  Twelve moles of sodium metal are added to twelve moles of hydrochloric acid. 
E)  Twelve moles of magnesium metal are added to twelve moles of hydrochloric acid.

Question 11

A(n) ________ ________ is the name given for the substance that causes another substance to undergo oxidation.

Accepted Answer

The answer of A(n) ________ ________ is the name given...

Question 12

Identify the major ions present in an aqueous LiOH solution.

Accepted Answer

A)  Li2+, O-, H- 
B)  Li+, OH- 
C)  LiO-, H+ 
D)  Li+, O2-, H+ 
E)  Li-, OH+ 
A)  Li2+, O-, H- 
B)  Li+, OH- 
C)  LiO-, H+ 
D)  Li+, O2-, H+ 
E)  Li-, OH+

Question 13

Which of these compounds is a strong electrolyte?

Accepted Answer

A)  H2O 
B)  N2 
C)  CH3COOH (acetic acid) 
D)  C2H6O (ethanol) 
E)  KOH 
A)  H2O 
B)  N2 
C)  CH3COOH (acetic acid) 
D)  C2H6O (ethanol) 
E)  KOH

Question 14

Which is a weak base?

Accepted Answer

A)  NH3 
B)  Ca(OH)2 
C)  Ba(OH)2 
D)  NaOH 
E)  CH3COOH 
A)  NH3 
B)  Ca(OH)2 
C)  Ba(OH)2 
D)  NaOH 
E)  CH3COOH

Question 15

What is the reducing agent in the following reaction? Mg + NiO2 + 2H2O → Mg(OH)2 + Ni(OH)2

Accepted Answer

A)  Mg 
B)  NiO2 
C)  H2O 
D)  Mg(OH)2 
E)  Ni(OH)2 
A)  Mg 
B)  NiO2 
C)  H2O 
D)  Mg(OH)2 
E)  Ni(OH)2

Question 16

Which of these compounds is a nonelectrolyte?

Accepted Answer

A)  NaF 
B)  HNO3 
C)  CH3COOH (acetic acid) 
D)  NaOH 
E)  C6H12O6 (glucose) 
A)  NaF 
B)  HNO3 
C)  CH3COOH (acetic acid) 
D)  NaOH 
E)  C6H12O6 (glucose)

Question 17

Which salt is produced by the neutralization of sodium hydroxide with sulfuric acid?

Accepted Answer

A)  Na2SO4 
B)  Na2(SO4)3 
C)  Na(SO4)2 
D)  Na2SO3 
E)  Na2S 
A)  Na2SO4 
B)  Na2(SO4)3 
C)  Na(SO4)2 
D)  Na2SO3 
E)  Na2S

Question 18

If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed, which insoluble precipitate is formed?

Accepted Answer

A)  LiC2H3O2 
B)  Li(C2H3O2)2 
C)  MgOH 
D)  Mg(OH)2 
E)  CH3OH 
A)  LiC2H3O2 
B)  Li(C2H3O2)2 
C)  MgOH 
D)  Mg(OH)2 
E)  CH3OH

Question 19

Which is a strong base?

Accepted Answer

A)  LiOH 
B)  CH3COOH 
C)  NH3 
D)  H3PO4 
E)  HClO2 
A)  LiOH 
B)  CH3COOH 
C)  NH3 
D)  H3PO4 
E)  HClO2

Question 20

A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the ammonium nitrate concentration in the resulting solution?

Accepted Answer

A)  2.18 M 
B)  0.523 M 
C)  0.349 M 
D)  0.174 M 
E)  0.0872 M 
A)  2.18 M 
B)  0.523 M 
C)  0.349 M 
D)  0.174 M 
E)  0.0872 M

Exam 4: Reactions in Aqueous Solutions

Which accurately characterizes all nonelectrolyte solutions?

Sodium hydroxide is water soluble.

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH)2. Find the concentration of nitric acid in the resulting solution.

If aqueous solutions of ammonium sulfide and copper(II) nitrate are mixed, which insoluble precipitate is formed?

Based on the solubility rules, which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3. If 1.573 g of a AgBr precipitate forms, what is the percent by mass of Br in the original compound?

If aqueous solutions of Na2CO3 and BaCl2 are mixed, which insoluble precipitate is formed?

Calcium nitrate tetrahydrate dissolves in warm water to the extent of 266 g per 100. cm3. What is the concentration of nitrate ions in this solution?

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

The diagram below represents the final mixture corresponding to which chemical process? (Each sphere represents 1 mole of ions.)

A(n) ________ ________ is the name given for the substance that causes another substance to undergo oxidation.

Identify the major ions present in an aqueous LiOH solution.

Which of these compounds is a strong electrolyte?

Which is a weak base?

What is the reducing agent in the following reaction? Mg + NiO2 + 2H2O → Mg(OH)2 + Ni(OH)2

Which of these compounds is a nonelectrolyte?

Which salt is produced by the neutralization of sodium hydroxide with sulfuric acid?

If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed, which insoluble precipitate is formed?

Which is a strong base?

A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the ammonium nitrate concentration in the resulting solution?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

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

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

A 350-mL sample of 0.276 M HNO₃ is partially neutralized by 125 mL of 0.120 M Ca(OH)₂. Find the concentration of nitric acid in the resulting solution.

Based on the solubility rules, which of these processes will occur when solutions of ZnSO₄(aq) and MgCl₂(aq) are mixed?

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO₃. If 1.573 g of a AgBr precipitate forms, what is the percent by mass of Br in the original compound?

If aqueous solutions of Na₂CO₃ and BaCl₂ are mixed, which insoluble precipitate is formed?

Calcium nitrate tetrahydrate dissolves in warm water to the extent of 266 g per 100. cm³. What is the concentration of nitrate ions in this solution?

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO₃?

A(n) is the name given for the substance that causes another substance to undergo oxidation.

What is the reducing agent in the following reaction? Mg + NiO₂ + 2H₂O → Mg(OH)₂ + Ni(OH)₂

If aqueous solutions of Mg(C₂H₃O₂)₂ and LiOH are mixed, which insoluble precipitate is formed?

A 50.0 mL sample of 0.436 M NH₄NO₃ is diluted with water to a total volume of 250.0 mL. What is the ammonium nitrate concentration in the resulting solution?