Chemical Principles 6th edition

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Steven Zumdahl
Publisher: Cengage Learning

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  • Chapter 1: Chemists and Chemistry
    • 1.1: Thinking Like A Chemist
    • 1.2: A Real-World Chemistry Problem
    • 1.3: The Scientific Method
    • 1.4: Industrial Chemistry
    • 1.5: Polyvinyl Chloride (PVC): Real-World Chemistry
    • WebAssign Answer Entry Tutorials (1)
    • ChemWork Tutorials
    • Extra Problems

  • Chapter 2: Atoms, Molecules, Ions
    • 2.1: Development of the Atomic Theory (2)
    • 2.2: The Nature of the Atom (1)
    • 2.3: Elements and the Periodic Table (7)
    • 2.4: Nomenclature (7)
    • 2: Discussion Questions (3)
    • 2: Additional Exercises (8)
    • 2: Challenge Problems (4)
    • 2: Marathon Problem
    • WebAssign Answer Entry Tutorials (1)
    • ChemWork Tutorials
    • Extra Problems (11)

  • Chapter 3: Stoichiometry
    • 3.1: Atomic Masses and the Mass Spectrometer (5)
    • 3.2: Moles and Molar Mass (8)
    • 3.3: Percent Composition (5)
    • 3.4: Empirical and Molecular Formulas (7)
    • 3.5: Balancing Chemical Equations (2)
    • 3.6: Reaction Stoichiometry (7)
    • 3.7: Limiting Reactants and Percent Yield (9)
    • 3.8: Stoichiometric Calculations: Amounts of Reactants and Products
    • 3.9: Calculations Involving a Limiting Reactant
    • 3: Discussion Questions (3)
    • 3: Additional Exercises (16)
    • 3: Challenge Problems [95-110 (4)
    • 3: Marathon Problems
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (18)

  • Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
    • 4.1: Aqueous Solutions: Strong and Weak Electrolytes
    • 4.2: Solution Concentration: Molarity (9)
    • 4.3: Precipitation Reactions (10)
    • 4.4: Acid-Base Reactions (11)
    • 4.5: Oxidation-Reduction Reactions (13)
    • 4: Discussion Questions (1)
    • 4: Additional Exercises (6)
    • 4: Challenge Problems (8)
    • 4: Marathon Problems (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (13)

  • Chapter 5: Gases
    • 5.1: Pressure (4)
    • 5.2: Gas Laws (19)
    • 5.3: Gas Density, Molar Mass, and Reaction Stoichiometry (16)
    • 5.4: Kinetic Molecular Theory and Real Gases (17)
    • 5.5: Atmosphere Chemistry (1)
    • 5: Discussion Questions (5)
    • 5: Additional Exercises (15)
    • 5: Challenge Problems (13)
    • 5: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (11)

  • Chapter 6: Chemical Equilibrium
    • 6.1: Characteristics of Chemical Equilibrium (2)
    • 6.2: The Equilibrium Constant (6)
    • 6.3: Equilibrium Calculations (13)
    • 6.4: Le Chatelier's Principle (5)
    • 6: Discussion Questions
    • 6: Additional Exercises (8)
    • 6: Challenge Problems (13)
    • 6: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (7)

  • Chapter 7: Acids and Bases
    • 7.1: Nature of Acids and Bases (8)
    • 7.2: Autoionization of Water and pH Scale (4)
    • 7.3: Solutions of Acids (14)
    • 7.4: Solutions of Bases (9)
    • 7.5: Polyprotic Acids (4)
    • 7.6: Acid-Base Properties of Salts (8)
    • 7.7: Solutions of Dilute Acids and Bases (3)
    • 7: Discussion Questions
    • 7: Additional Exercises (9)
    • 7: Challenge Problems (8)
    • 7: Marathon Problems (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (13)

  • Chapter 8: Applications of Aqueous Equilibria
    • 8.1: Buffers (19)
    • 8.2: Acid-Base Titrations and Indicators (19)
    • 8.3: Solubility Equilibria (12)
    • 8.4: Complex Ion Equilibria (8)
    • 8: Discussion Questions
    • 8: Additional Exercises (9)
    • 8: Challenge Problems (6)
    • 8: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (11)

  • Chapter 9: Energy, Enthalpy, and Thermochemistry
    • 9.1; The Nature of Energy (6)
    • 9.2: Properties of Enthalpy (3)
    • 9.3: The Thermodynamics of Ideal Gases (4)
    • 9.4: Calorimetry and Heat Capacity (10)
    • 9.5: Hess's Law (4)
    • 9.6: Standard Enthalpies of Formation (8)
    • 9.7: Energy Consumption and Sources (2)
    • 9: Discussion Questions (1)
    • 9: Additional Exercises (5)
    • 9: Challenge Problems (5)
    • 9: Marathon Problems (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (9)

  • Chapter 10: Spontaneity, Entropy, and Free Energy
    • 10.1: Spontaneity and Entropy (6)
    • 10.2: Energy, Enthalpy, and Entropy Changes Involving Ideal Gases and Physical Changes (12)
    • 10.3: Entropy and the Second Law of Thermodynamics: Free Energy (14)
    • 10.4: Free Energy and Chemical Reactions (9)
    • 10.5: Free Energy: Pressure Dependence and Equilibrium (11)
    • 10.6: Adiabatic Processes (2)
    • 10: Discussion Questions
    • 10: Additional Exercises (13)
    • 10: Challenge Problems (10)
    • 10: Marathon Problems
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (8)

  • Chapter 11: Electrochemistry
    • 11.1: Galvanic Cells, Cell Potentials, and Standard Reduction Potentials (10)
    • 11.2: Cell Potential, Free Energy, and Equilibrium (10)
    • 11.3: Galvanic Cells: Concentration Dependence (12)
    • 11.4: Electrolysis (13)
    • 11: Discussion Questions
    • 11: Additional Exercises (6)
    • 11: Challenge Problems (8)
    • 11: Marathon Problems (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (14)

  • Chapter 12: Quantum Mechanics and Atomic Theory
    • 12.1: Light and Matter (9)
    • 12.2: Hydrogen Atom: The Bohr Model (4)
    • 12.3: Wave Mechanics and Particle in a Box (6)
    • 12.4: Orbitals and Quantum Numbers (3)
    • 12.5: Polyelectronic Atoms (8)
    • 12.6: The Periodic Table and Periodic Properties (8)
    • 12.7: The Alkali Metlas (2)
    • 12: Discussion Questions (1)
    • 12: Additional Exercises (7)
    • 12: Challenge Problems (4)
    • 12: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (20)

  • Chapter 13: Bonding: General Concepts
    • 13.1: Chemical Bonds and Electronegativity (6)
    • 13.2: Ionic Compounds (9)
    • 13.3: Bond Energies (11)
    • 13.4: Lewis Structures and Resonance (13)
    • 13.5: Formal Charge (3)
    • 13.6: Molecular Structure and Polarity (6)
    • 13: Discussion Questions
    • 13: Additional Exercises (3)
    • 13: Challenge Problems (2)
    • 13: Marathon Problem
    • WebAssign Answer Entry Tutorials (2)
    • ChemWork Tutorials
    • Extra Problems (14)

  • Chapter 14: Covalent Bonding: Orbitals
    • 14.1: The LE Model and Hybrid Orbitals (12)
    • 14.2: The MO Model (6)
    • 14.3: Spectroscopy (3)
    • 14: Discussion Questions (1)
    • 14: Additional Exercises (12)
    • 14: Challenge Problems (3)
    • 14: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (9)

  • Chapter 15: Chemical Kinetics
    • 15.1: Reaction Rates (5)
    • 15.2: Rate Laws from Experimental Data: Initial-Rates Method (6)
    • 15.3: Integrated Rate Laws (19)
    • 15.4: Reaction Mechanisms (8)
    • 15.5: Temperature Dependence of Rate Constants and the Collision Model (8)
    • 15.6: Catalysis (5)
    • 15: Discussion Questions
    • 15: Additional Exercises (9)
    • 15: Challenge Problems (3)
    • 15: Marathon Problem
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (10)

  • Chapter 16: Liquids and Solids
    • 16.1: Intermolecular Forces and Physical Properties (7)
    • 16.2: Properties of Liquids (3)
    • 16.3: Structures and Properties of Solids (28)
    • 16.4: Phase Change and Phase Diagrams (15)
    • 16: Discussion Questions (1)
    • 16: Additional Exercises (11)
    • 16: Challenge Problems (1)
    • 16: Marathon Problem (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (16)

  • Chapter 17: Properties of Solutions
    • 17.1: Solution Composition (9)
    • 17.2: Thermodynamics of Solutions and Solubility (9)
    • 17.3: Vapor Pressures of Solutions (12)
    • 17.4: Colligative Properties (12)
    • 17.5: Properties of Electrolyte Solutions (11)
    • 17: Discussion Questions
    • 17: Additional Exercises (13)
    • 17: Challenge Problems (3)
    • 17: Marathon Problem
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (16)

  • Chapter 18: The Representative Elements
    • 18.1:Group 1A Elements (9)
    • 18.2: Group 2A Elements (7)
    • 18.3: Group 3A Elements (4)
    • 18.4: Group 4A Elements (4)
    • 18.5: Group 5A Elements (12)
    • 18.6: Group 6A Elements (4)
    • 18.7: Group 7A Elements (7)
    • 18.8: Group 8A Elements (3)
    • 18: Additional Exercises (7)
    • 18: Challenge Problems (8)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (26)

  • Chapter 19: Transition Metals and Coordination Chemistry
    • 19.1: Transition Metals (3)
    • 19.2: Coordination Compounds (15)
    • 19.3: Bonding, Color, and Magnetism in Coordination Compounds (6)
    • 19: Discussion Exercises
    • 19: Additional Exercises (10)
    • 19: Challenge Problems (3)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (21)

  • Chapter 20: The Nucleus: A Chemist's View
    • 20.1: Radioactive Deca and Nuclear Transformations (8)
    • 20.2: Kinetics of Radioactive Decay (14)
    • 20.3: Energy Changes in Nuclear Reactions (8)
    • 20.4: Detection, Uses, and Health Effects of Radiation (5)
    • 20: Additional Exercises (5)
    • 20: Challenge Problems (4)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (2)

  • Chapter 21: Organic and Biochemical Molecules
    • 21.1: Hydrocarbons (13)
    • 21.2: Isomerism (12)
    • 21.3: Functional Groups (10)
    • 21.4: Reactions of Organic Compounds (6)
    • 21.5: Polymers (1)
    • 21.6: Natural Polymers (11)
    • 21: Additional Exercises (8)
    • 21: Challenge Problems (1)
    • WebAssign Answer Entry Tutorials
    • ChemWork Tutorials
    • Extra Problems (2)

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

Question Group Key
AE - Additional Exercises
CP - Challenge Problems
DQ - Discussion Questions
E - Exercises
MP - Marathon Problem
XP - Extra Problems
CW - ChemWork Tutorials
T - Tutorials & Templates


Question Availability Color Key
BLACK questions are available now
GRAY questions are under development


Group Quantity Questions
Chapter 1: Chemists and Chemistry
1.T 1 001
Chapter 2: Atoms, Molecules, Ions
2.AE 8 055 056 058.pad 059 061 062 064 066
2.CP 4 070 071 072 073
2.DQ 3 009 011 012
2.E 17 019 020 027 031 032 036 037 038 040 042 046 046.alt 047 048 050 051 052
2.T 1 001
2.XP 11 001 002 003 004 005 006 007 008 009 010 011
Chapter 3: Stoichiometry
3.AE 16 075 076 078 079 080 081 082 083 084 085 086 087 088 090 091 092
3.CP 4 097 098 100 102
3.DQ 3 006 010 011
3.E 43 024 025 026 027 029 030 031 032 033 034 035 035.alt 036 038 039 040 041 042 044 046 047 048 049 050 052 054 055 057 058 059 060 061 062 064 066 067 068 069 070 071 072 073 074
3.XP 18 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018
Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
4.AE 6 071 074 076 080 081 082
4.CP 8 084 086 087 088 090 093 094 096
4.DQ 1 006
4.E 43 014 015 016 017 018 019 020 021 022 028 030 031 033 034 035 036 037 038 039 040 042 043 044 046 048 049 050 052 053 054 055 056 058 060 061 062 063 064 065 066 067 069 070
4.MP 1 099
4.XP 13 001 002 003 004 005 006 007 008 009 010 011 012 013
Chapter 5: Gases
5.AE 15 103 104 105 106 108 109 110 111 112 114 115 116 117 119 121
5.CP 13 122 125 126 128 130 134 135 136 137 138 139 140 141
5.DQ 5 006 009 011 012 015
5.E 57 021 022 024 025 026 027 028 029 030 031 032 034 035 036 037 038 039 040 041 042 043 044 046 048 049 050 052 053 054 055 056 057 058 060 061 062 063 064 066 073 074 076 078 080 081 082 083 084 086 088 089 091 092 094 096 097 101
5.MP 1 144
5.XP 11 001 002 003 004 005 006 007 008 009 010 011
Chapter 6: Chemical Equilibrium
6.AE 8 057 058 060 061 062 064 068 070
6.CP 13 072 074 075 076 077 078 080 081 082 083 084 086 088
6.E 26 012 013 022 024 025 027 028 029 030 031 032 033 034 035 036 038 039 040 042 043 044 048 052 053 054 056
6.MP 1 090
6.XP 7 001 002 003 004 005 006 007
Chapter 7: Acids and Bases
7.AE 9 105 108 109 112 114 116 118 120 121
7.CP 8 122 129 130 132 133 136 137 137.alt
7.E 50 018 019 022 024 026 027 028 029 030 032 033 034 035 036 038 040 041 042 044 046 048 050 051 052 054 056 057 058 060 062 064 066 068 072 074 077 078 080 082 085 086 090 092 094 095 096 098 100 102 104
7.MP 1 139
7.XP 13 001 002 003 004 005 006 007 008 009 010 011 012 013
Chapter 8: Applications of Aqueous Equilibria
8.AE 9 115 118 122 123 124 125 126 128 130
8.CP 6 134 136 140 144 146 150
8.E 58 019 020 021 023 024 025 026 028 029 030 032 034 036 037 038 040 042 043 045 046 051 053 054 055 056 057 060 061 062 063 066 067 068 074 075 076 078 080 081 082 084 086 088 089 090 092 096 098 099 100 102 104 105 106 108 110 111 112
8.MP 1 152
8.XP 11 001 003 004 005 007 008 009 010 011 012 013
Chapter 9: Energy, Enthalpy, and Thermochemistry
9.AE 5 075 078 079 080 083
9.CP 5 088 090 092 094 096
9.DQ 1 003
9.E 37 015 020 021 022 023 024 026 029 032 033 034 035 036 038 040 042 043 044 045 046 048 049 050 054 056 057 058 062 062.alt 064 065 067 068 069 070 071 072
9.MP 1 097
9.XP 9 001 002 003 004 005 006 007 008 009
Chapter 10: Spontaneity, Entropy, and Free Energy
10.AE 13 087 089 090 091 091.alt 092 094 096 098 102 105 106 108
10.CP 10 109 110 115 116 118 119 120 122 124 126
10.E 54 012 015 016 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 036 037 038 039 040 041 043 044 045 046 047 048 050 051 054 055 056 058 059 060 061 064 065 066 067 068 070 071 072 074 076 081 082 084
10.XP 8 001 002 003 004 005 006 007 008
Chapter 11: Electrochemistry
11.AE 6 081 085 086 088 090 092
11.CP 8 094 095 096 098 099 100 102 104
11.E 45 016 017 018 020 022 024 026 027 028 030 032 034 035 036 037 038 040 042 044 045 046 047 048 049 050 051 052 054 055 056 057 058 060 061 062 064 065 066 068 070 072 073 074 075 076
11.MP 1 106
11.XP 14 001 002 003 004 005 006 007 008 009 010 011 012 013 014
Chapter 12: Quantum Mechanics and Atomic Theory
12.AE 7 112 114 120 121 123 125 128
12.CP 4 130 133 136 137
12.DQ 1 001
12.E 40 021 022 024 025 026 027 030 031 032 036 037 038 042 045 046 047 048 050 051 056 061 062 065 066 067 068 070 078 079 080 086 088 090 092 094 096 098 099 104 106
12.MP 1 141
12.XP 20 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020
Chapter 13: Bonding: General Concepts
13.AE 3 097 099 100
13.CP 2 111 111.mrv
13.E 48 012 013 014 015 016 018 021 022 024 025 026 027 030 034 036 037 038 039 040 041 042 044 046 047 048 049 051 051.mrv 052 052.mrv 054.mrv 055.mrv 059.mrv 061 061.mrv 062.mrv 067 068 069 071.mrv 072.mrv 074.mrv 076 080 082 086 090 091
13.T 2 001 002
13.XP 14 001 001.mrv 002 003 004 005 006 007 008 009 009.mrv 010 010.mrv 011
Chapter 14: Covalent Bonding: Orbitals
14.AE 12 055.mrv 056 056.mrv 057 058 060 062 062.alt 062.mrv 064.mrv 067 068
14.CP 3 070 071 074
14.DQ 1 004
14.E 21 010 012 018 019.mrv 020 022 023.mrv 024 024.mrv 025 025.mrv 026.mrv 034 036 038 040 042 044 049 050 051
14.MP 1 080
14.XP 9 001 002 002.mrv 003 004 005 006 007 008
Chapter 15: Chemical Kinetics
15.AE 9 090 091 092 094 095 096 097 098 100
15.CP 3 103 107 108
15.E 51 012 013 014 015 016 017 018 020 021 022 023 027 028 029 030 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 048 051 052 055 057 057.alt 060 062 064 068 069 070 071 072 074 076 082 083 084 085 087
15.XP 10 001 003 004 005 006 007 008 009 010 011
Chapter 16: Liquids and Solids
16.AE 11 107 111 112 113 114 116 117 118 119 120 122
16.CP 1 126
16.DQ 1 010
16.E 53 012 015 016 017 018 020 024 028 031 032 033 037 038 039 040 041 043 044 045 046 047 048 049 050 055 056 057 058 061 062 063 064 065 066 068 069 070 073 074 077 078 080 082 084 086 088 089 090 091 092 093 094 100
16.MP 1 132
16.XP 16 001 002 003 004 005 007 008 009 010 011 012 013 014 015 016 017
Chapter 17: Properties of Solutions
17.AE 13 089 090 092 096 097 099 100 101 102 103 104 106 108
17.CP 3 110 116 118
17.E 53 014 015 016 017 018 019 020 021 022 024 026 027 028 030 031 035 036 037 038 039 040 042 043 044 045 046 047 049 050 051 057 058 059 060 061 062 063 064 066 067 069 070 073 074 075 076 078 079 080 081 082 083 084
17.XP 16 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016
Chapter 18: The Representative Elements
18.AE 7 084 085 086 087 094 096 098
18.CP 8 099 100 101 102 104 105 106 107
18.E 50 001 002 003 004 005 006 009 010 011 012 013 014 016 018 019 020 023 024 025 026 029 030 031 032 036 040 041.mrv 045 046 047 051 052 053 054.mrv 056 057 060 062 063 067 068 069.mrv 071 072 073 074 075 077 078 079
18.XP 26 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 020.mrv 021 022 023 024 025
Chapter 19: Transition Metals and Coordination Chemistry
19.AE 10 063 064 065 066 069 070 072 073 074 076
19.CP 3 078 081 083
19.E 24 006 007 012 016 018 020 022 023 024 025 026 028 030 032 036 039 040 041 045 046 050 052 054 059
19.XP 21 001 002 003 004 005 006 007 008 009 010 011 012 012.mrv 013 014 015 015.mrv 016 017 018 018.mrv
Chapter 20: The Nucleus: A Chemist's View
20.AE 5 055 056 058 059 060
20.CP 4 062 064 065 066
20.E 35 002 004 006 007 008 009 010 012 013 014 015 016 017 018 019 020 023 024 025 026 027 028 029 030 032 033 034 036 037 038 039 042 046 047 053
20.XP 2 001 002
Chapter 21: Organic and Biochemical Molecules
21.AE 8 131 134.mrv 136 137 138 142 146 147
21.CP 1 155
21.E 53 005.mrv 008 010 010.mrv 011 012 013 014 014.mrv 015 016 016.mrv 017 020.mrv 022 025.mrv 025.mrv.alt 027.mrv 028.mrv 029.mrv 030.mrv 031 032 033.mrv 034.mrv 037 038 039 040 042.mrv 044 045 046 049.mrv 050 056.mrv 057.mrv 058.mrv 061.mrv 062.mrv 067.mrv 080.mrv 094 096 096.mrv 098 102 106 116 119 120 123 126
21.XP 2 001 002
Total 1430