.

FEATURE DETAILS

Chemistry: A Molecular Approach 2nd edition

Textbook Cover

Nivaldo J. Tro
Publisher: Prentice Hall

Try an Example Assignment


Terms of Use

Access is contingent on use of this textbook in the instructor's classroom.

Student Pricing

Academic Term Homework
Semester $25.95
Quarter $21.95
High School $10.50

Online price per student per course or lab, bookstore price varies. Access cards can be packaged with most any textbook, please see your textbook rep or contact WebAssign

Table of Contents

  • Chapter 1: Matter, Measurement, and Problem Solving
    • 1.1: The Scientific Approach to Knowledge (1)
    • 1.2: The Classification and Properties of Matter (6)
    • 1.3: Units in Measurement (7)
    • 1.4: Density (4)
    • 1.5: The Reliability of a Measurement and Significant Figures (3)
    • 1.6: Significant Figures in Calculations (3)
    • 1.7: Unit Conversions (6)
    • 1.8: Cumulative Problems (2)
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 2: Atoms and Elements
    • 2.1: The Laws of Conservation of Mass, Definite Proportions, and Multiple Proportions (3)
    • 2.2: Atomic Theory, Nuclear Theory, and Subatomic Particles (6)
    • 2.3: Isotopes and Ions (6)
    • 2.4: The Periodic Table and Atomic Mass (7)
    • 2.5: The Mole Concept (7)
    • 2.6: Cumulative Problems (7)
    • 2.7: Challenge Problems (2)
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 3: Molecules, Compounds, and Chemical Equations
    • 3.1: Chemical Formulas and Molecular View of Elements and Compounds (4)
    • 3.2: Formulas and Names for Ionic Compounds (5)
    • 3.3: Formulas and Names for Molecular Compounds and Acids (4)
    • 3.4: Formula Mass and the Mole Concept for Compounds (4)
    • 3.5: Composition of Compounds (6)
    • 3.6: Chemical Formulas from Experimental Data (5)
    • 3.7: Writing and Balancing Chemical Equations (5)
    • 3.8: Organic Compounds (3)
    • 3.9: Cumulative Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 4: Chemical Quantities and Aqueous Reactions
    • 4.1: Reaction Stoichiometry (5)
    • 4.2: Limiting Reactant, Theoretical Yield, and Percent Yield (5)
    • 4.3: Solution Concentration and Solution Stoichiometry (6)
    • 4.4: Types of Aqueous Solutions and Solubility (2)
    • 4.5: Precipitation Reactions (2)
    • 4.6: Ionic and Net Ionic Equations (1)
    • 4.7: AcidÐBase and Gas-Evolution Reactions (2)
    • 4.8: OxidationÐReduction and Combustion (2)
    • 4.9: Cumulative Problems (4)
    • 4.10: Challenge Problems (2)
    • 4.11: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 5: Gases
    • 5.1: Converting between Pressure Units (2)
    • 5.2: Simple Gas Laws (3)
    • 5.3: Ideal Gas Law (7)
    • 5.4: Molar Volume, Density, and Molar Mass of a Gas (2)
    • 5.5: Partial Pressure (5)
    • 5.6: Reaction Stoichiometry Involving Gases (4)
    • 5.7: Kinetic Molecular Theory (2)
    • 5.8: Real Gases (1)
    • 5.9: Cumulative Problems (5)
    • WebAssign Answer Entry Tutorials

  • Chapter 6: Thermochemistry
    • 6.1: Energy Units (2)
    • 6.2: Internal Energy, Heat, and Work (2)
    • 6.3: Heat, Heat Capacity, and Work (4)
    • 6.4: Enthalpy and Thermochemical Stoichiometry (3)
    • 6.5: Thermal Energy Transfer (2)
    • 6.6: Calorimetry (1)
    • 6.7: Quantitative Relationships Involving ΔH and HessÕs Law (1)
    • 6.8: Enthalpies of Formation and Δ H (1)
    • 6.9: Energy Use and the Environment (1)
    • 6.10: Cumulative Problems (6)
    • 6.11: Challenge Problems (6)
    • 6.12: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 7: The Quantum-Mechanical Model of the Atom
    • 7.1: Electromagnetic Radiation (5)
    • 7.2: The Wave Nature of Matter and the Uncertainty Principle (5)
    • 7.3: Orbitals and Quantum Numbers (3)
    • 7.4: Atomic Spectroscopy (4)
    • 7.5: Cumulative Problems (10)
    • 7.6: Challenge Problems (4)
    • 7.7: Conceptual Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 8: Periodic Properties of the Elements
    • 8.1: Electron Configurations (5)
    • 8.2: Valence Electrons and Simple Chemical Behavior from the Periodic Table (2)
    • 8.3: Effective Nuclear Charge and Atomic Radius (3)
    • 8.4: Ionic Electron Configurations, Ionic Radii, Magnetic Properties, and Ionization Energy (7)
    • 8.5: Electron Affinities and Metallic Character (3)
    • 8.6: Chemical Behavior of the Alkali Metals and the Halogens (3)
    • 8.7: Cumulative Problems (2)
    • 8.8: Challenge Problems (5)
    • 8.9: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 9: Chemical Bonding I: Lewis Theory
    • 9.1: Review Questions (1)
    • 9.2: Valence Electrons and Dot Structures (2)
    • 9.3: Ionic Lewis Structures and Lattice Energy (4)
    • 9.4: Simple Covalent Lewis Structures, Electronegativity, and Bond Polarity (3)
    • 9.5: Covalent Lewis Structures, Resonance, and Formal Charge (4)
    • 9.6: Odd-Electron Species, Incomplete Octets, and Expanded Octets (3)
    • 9.7: Bond Energies and Bond Lengths (2)
    • 9.8: Cumulative Problems (9)
    • 9.9: Challenge Problems (3)
    • 9.10: Conceptual Problems (2)
    • WebAssign Answer Entry Tutorials (2)

  • Chapter 10: Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory
    • 10.1: VSEPR Theory and Molecular Geometry (4)
    • 10.2: Molecular Shape and Polarity (3)
    • 10.3: Valence Bond Theory (4)
    • 10.4: Molecular Orbital Theory (2)
    • 10.5: Cumulative Problems (7)
    • 10:6: Challenge Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 11: Liquids, Solids, and Intermolecular Forces
    • 11.1: Intermolecular Forces (3)
    • 11.2: Surface Tension, Viscosity, and Capillary Action
    • 11.3: Vaporization and Vapor Pressure (4)
    • 11.4: Sublimation and Fusion (3)
    • 11.5: Phase Diagrams (2)
    • 11.6: The Uniqueness of Water (2)
    • 11.7: Types of Solids and Their Structures (9)
    • 11.8: Cumulative Problems (5)
    • 11.9: Challenge Problems (2)
    • 11.10: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 12: Solutions
    • 12.1: Solubility (3)
    • 12.2: Energetics of Solution Formation (2)
    • 12.3: Solution Equilibrium and Factors Affecting Solubility (3)
    • 12.4: Concentrations of Solutions (9)
    • 12.5: Vapor Pressure of Solutions (3)
    • 12.6: Freezing Point Depression, Boiling Point Elevation, and Osmosis (5)
    • 12.7: Cumulative Problems (3)
    • 12.8: Challenge Problems (3)
    • 12.9: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 13: Chemical Kinetics
    • 13.1: Reaction Rates (5)
    • 13.2: The Rate Law and Reaction Orders (4)
    • 13.3: The Integrated Rate Law and Half-Life (6)
    • 13.4: The Effect of Temperature and the Collision Model (6)
    • 13.5: Reaction Mechanisms (2)
    • 13.6: Catalysis (1)
    • 13.7: Cumulative Problems (6)
    • 13.8: Challenge Problems (1)
    • 13.9: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 14: Chemical Equilibrium
    • 14.1: Equilibrium and the Equilibrium Constant Expression (2)
    • 14.2: Kp, Kc, and Heterogeneous Equilibria (2)
    • 14.3: Relating the Equilibrium Constant to Equilibrium Concentrations and Equilibrium Partial Pressures (5)
    • 14.4: The Reaction Quotient and Reaction Direction (2)
    • 14.5: Finding Equilibrium Concentrations from Initial Concentrations and the Equilibrium Constant (5)
    • 14.6: Le Ch‰telier's Principle (4)
    • 14.7: Cumulative Problems (8)
    • 14.8: Challenge Problems (2)
    • 14.9: Conceptual Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 15: Acids and Bases
    • 15.1: The Nature and Definitions of Acids and Base (3)
    • 15.2: Acid Strength and Ka (2)
    • 15.3: Autoionization of Water and pH (3)
    • 15.4: Acid Solutions (7)
    • 15.5: Base Solutions (3)
    • 15.6: AcidÐBase Properties of Ions and Salts (2)
    • 15.7: Polyprotic Acids (2)
    • 15.8: Molecular Structure and Acid Strength (2)
    • 15.9: Cumulative Problems (6)
    • 15.10: Challenge Problems (1)
    • 15.11: Conceptual Problems
    • WebAssign Answer Entry Tutorials

  • Chapter 16: Aqueous Ionic Equilibrium
    • 16.1: The Common Ion Effect and Buffers (13)
    • 16.2: Titrations, pH Curves, and Indicators (5)
    • 16.3: Solubility Equilibria (8)
    • 16.4: Precipitation and Qualitative Analysis (4)
    • WebAssign Answer Entry Tutorials

  • Chapter 17: Free Energy and Thermodynamics
    • 17.1: Entropy, the Second Law of Thermodynamics, and the Direction of Spontaneous Change (5)
    • 17.2: Standard Entropy Changes and Gibbs Free Energy (11)
    • 17.3: Free Energy Changes, Nonstandard Conditions, and the Equilibrium Constant (7)
    • 17.4: Cumulative Problems (8)
    • 17.5: Challenge Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 18: Electrochemistry
    • 18.1: Balancing Redox Reactions (2)
    • 18.2: Voltaic Cells, Standard Cell Potentials, and Direction of Spontaneity (10)
    • 18.3: Cell Potential, Free Energy, and the Equilibrium Constant (4)
    • 18.4: Non-Standard Conditions and the Nernst Equation (5)
    • 18.5: Batteries, Fuel Cells, and Corrosion (3)
    • 18.6: Electrolytic Cells and Electrolysis (5)
    • 18.7: Cumulative Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 19: Radioactivity and Nuclear Chemistry
    • 19.1: Radioactive Decay and Nuclide Stability (6)
    • 19.2: The Kinetics of Radioactive Decay and Radiometric Dating (6)
    • 19.3: Fission, Fusion, and Transmutation (4)
    • 19.4: Energetics of Nuclear Reactions, Mass Defect, and Nuclear Binding Energy (6)
    • 19.5: Cumulative Problems (9)
    • WebAssign Answer Entry Tutorials

  • Chapter 20: Organic Chemistry
    • 20.1: Hydrocarbons (3)
    • 20.2: Alkanes (4)
    • 20.3: Alkenes and Alkynes (6)
    • 20.4: Aromatic Hydrocarbons (5)
    • 20.5: Alcohols (2)
    • 20.6: Aldehydes and Ketones (2)
    • 20.7: Carboxylic Acids and Esters (2)
    • 20.8: Ethers (1)
    • 20.9: Amines (2)
    • 20.10: Polymers (2)
    • 20.11: Cumulative Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 21: Biochemistry
    • 21.1: Review Questions (4)
    • 21.2: Lipids (3)
    • 21.3: Carbohydrates (3)
    • 21.4: Amino Acids and Proteins (7)
    • 21.5: Nucleic Acids (4)
    • 21.6: Cumulative Problems (6)
    • 21.7: Challenge Problems (1)
    • 21.8: Conceptual Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 22: Chemistry of the Nonmetals
    • 22.1: Review Questions (1)
    • 22.2: Silicates: The Most Abundant Matter in EarthÕs Crust (4)
    • 22.3: Boron and Its Remarkable Structures (3)
    • 22.4: Carbon, Carbides, and Carbonates (5)
    • 22.5: Nitrogen and Phosphorus: Essential Elements for Life (9)
    • 22.6: Oxygen (1)
    • 22.7: Sulfur: A Dangerous but Useful Element (2)
    • 22.8: Halogens (2)
    • 22.9: Cumulative Problems (7)
    • 22.10: Challenge Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 23: Metals and Metallurgy
    • 23.1: Review Questions (1)
    • 23.2: The General Properties and Natural Distribution of Metals (2)
    • 23.3: Metallurgical Processes (2)
    • 23.4: Metal Structures and Alloys (6)
    • 23.5: Sources, Properties, and Products of Some of the 3d Transition Metals (4)
    • 23.6: Cumulative Problems (3)
    • 23.7: Challenge Problems (3)
    • 23.8: Conceptual Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 24: Transition Metals and Coordination Compounds
    • 24.1: Review Questions (3)
    • 24.2: Properties of Transition Metals (2)
    • 24.3: Coordination Compounds (4)
    • 24.4: Structure and Isomerism (3)
    • 24.5: Bonding in Coordination Compounds (6)
    • 24.6: Applications of Coordination Compounds (2)
    • 24.7: Cumulative Problems (5)
    • 24.8: Challenge Problems (3)
    • 24.9: Conceptual Problems (2)
    • WebAssign Answer Entry Tutorials

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

P
 Problems
T
 Tutorials & Templates


Question Availability Color Key

BLACK questions are available now
BOLD ORANGE questions are under development


Group Quantity Questions
Chapter 1: Matter, Measurement, and Problem Solving
1.P 32 034 038 040 042 044 046 048 052 054 056 058 060 062 064 066 068 070 072 078 080 082 084 086 088 090 092 094 096 098 100 104 106
1.T 1 001
Chapter 2: Atoms and Elements
2.P 38 030 032 034 040 042 044 046 048 050 052 054 056 058 060 062 064 066 068 070 072 076 078 080 082 084 086 088 090 092 094 100 102 104 106 108 112 118 122
2.T 1 001
Chapter 3: Molecules, Compounds, and Chemical Equations
3.P 38 024 026 028 030 034 038 042 044 046 048 050 052 054 056 058 060 062 066 068 070 072 076 078 080 082 086 088 090 094 096 098 100 102 104 108 110 118 126
Chapter 4: Chemical Quantities and Aqueous Reactions
4.P 32 026 028 032 034 036 038 042 044 046 048 054 056 058 060 062 064 068 070 072 074 076 084 086 088 092 096 100 114 118 122 128 132
Chapter 5: Gases
5.P 31 030 034 036 038 040 042 044 046 048 050 052 056 062 064 066 068 070 072 074 076 078 080 082 086 090 096 098 104 106 108 114
Chapter 6: Thermochemistry
6.P 30 034 036 042 044 048 050 052 054 056 060 062 064 066 074 076 086 094 096 098 102 108 114 116 118 120 122 124 126 128 134
Chapter 7: The Quantum-Mechanical Model of the Atom
7.P 33 038 042 044 046 048 050 052 054 056 058 060 062 064 068 070 072 074 076 078 080 082 084 086 088 090 092 094 096 100 102 104 106 107
Chapter 8: Periodic Properties of the Elements
8.P 31 044 046 048 050 052 054 056 058 062 064 066 068 070 072 074 076 078 080 082 084 086 088 090 098 112 116 118 122 126 128 130
Chapter 9: Chemical Bonding I: Lewis Theory
9.P 33 023 036 038 040 042 046 048 052 054 056 060 062 064 066 070 072 074 076 078 082 084 086 090 096 100 104 106 108 110 112 114 120 122
9.T 2 001 002
Chapter 10: Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory
10.P 22 032 034 036 044 048 050 052 054 058 060 068 078 080 084 086 088 090 092 094 096 100 102
Chapter 11: Liquids, Solids, and Intermolecular Forces
11.P 31 050 052 060 072 074 076 078 080 082 084 086 090 092 094 096 098 100 102 104 106 112 116 118 122 126 128 134 138 140 144 150
Chapter 12: Solutions
12.P 32 030 032 034 038 040 042 044 050 052 054 056 058 060 062 064 066 068 070 072 074 078 080 082 084 086 098 104 114 120 124 126 130
Chapter 13: Chemical Kinetics
13.P 32 026 028 030 032 034 038 040 042 044 046 048 050 052 054 056 060 062 064 066 068 070 074 076 080 082 084 090 096 102 110 114 120
Chapter 14: Chemical Equilibrium
14.P 32 028 030 032 034 036 038 040 042 044 046 048 050 054 056 058 060 062 064 066 070 074 076 078 080 082 084 086 090 092 096 098 100
Chapter 15: Acids and Bases
15.P 31 034 036 038 044 046 048 050 052 056 058 060 064 072 076 078 080 084 090 096 100 110 114 122 124 130 132 134 136 140 142 148
Chapter 16: Aqueous Ionic Equilibrium
16.P 30 030 032 034 038 040 042 044 046 048 050 052 054 058 062 064 076 080 082 086 088 090 092 094 096 098 100 102 104 106 110
Chapter 17: Free Energy and Thermodynamics
17.P 32 028 032 034 036 038 040 042 044 048 050 052 056 058 060 062 064 066 068 070 072 074 076 078 080 082 084 086 088 090 094 098 102
Chapter 18: Electrochemistry
18.P 32 040 042 046 048 050 052 054 056 058 060 062 064 066 068 070 072 074 076 078 080 082 084 086 088 092 094 096 100 102 104 108 110
Chapter 19: Radioactivity and Nuclear Chemistry
19.P 31 032 034 036 038 042 044 046 048 050 052 054 056 058 060 062 064 066 068 070 072 074 076 078 080 082 084 086 088 090 092 094
Chapter 20: Organic Chemistry
20.P 32 036 040 042 044 046 048 050 052 054 056 058 060 062 064 066 068 070 072 074 076 078 080 082 084 086 088 090 092 094 096 098 100
Chapter 21: Biochemistry
21.P 29 003 005 017 018 032 034 036 038 040 042 050 052 054 056 058 060 062 064 066 068 070 072 074 076 080 082 084 086 090
Chapter 22: Chemistry of the Nonmetals
22.P 37 010 018 020 022 026 028 032 034 036 040 042 044 046 048 050 052 054 056 058 060 062 064 068 072 074 076 078 082 084 086 088 090 092 094 096 098 100
Chapter 23: Metals and Metallurgy
23.P 23 014 016 018 022 024 032 034 036 038 040 042 046 048 050 058 060 064 066 070 072 074 076 077
Chapter 24: Transition Metals and Coordination Compounds
24.P 30 009 010 011 018 020 022 024 026 028 034 036 040 042 044 046 048 050 052 054 056 058 060 064 066 068 072 074 076 078 080
Total 758  
Contact Us :: About Us :: Employment :: Partners :: Privacy :: Terms of Use :: Security :: Accessibility :: Site Map

WebAssign® is a registered service mark of North Carolina State University under license to Advanced Instructional Systems, Inc.

Copyright Information © 1997–2003 North Carolina State University. Portions © 2003– Advanced Instructional Systems, Inc.

Various trademarks held by their respective owners.

Main Office: 1791 Varsity Drive, Suite 200, Raleigh, NC 27606 | Tel (919) 829-8181 | Fax (919) 829-1516