Chemistry: A Molecular Approach, Canadian Edition, 4th edition

Published by Pearson Canada (February 14, 2022) © 2023

  • Nivaldo J. Tro Santa Barbara City College
  • Travis D. Fridgen Memorial University of Newfoundland
  • Lawton E. Shaw Athabasca University

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Nivaldo Tro's Chemistry: A Molecular Approach presents chemistry visually through multi-level images-macroscopic, molecular, and symbolic representations-to help students see the connections between the world they see around them, the atoms and molecules that compose the world, and the formulas they write down on paper. Interactive, digital versions of selected worked examples instruct students how to break down problems using Tro's unique "Sort, Strategize, Solve, and Check" technique and then complete a step in the example. To build conceptual understanding, Dr. Tro employs an active learning approach through interactive media that requires students to pause during videos to ensure they understand before continuing.

The Canadian adaptation of Chemistry: A Molecular Approach draws very heavily on feedback from professors and instructors across Canada.

Hallmark features of this title

  • Tro's four-step “Sort, Strategize, Solve, and Check” problem-solving approach in the worked examples helps students connect the chemistry concepts to the problem and to its solution by developing an explicit conceptual plan for each problem. This method helps students understand where to start a problem and to think through the solution rather than simply formula hunting based on the given information. 
  • Canadian Context. Naturally, a Canadian edition will include Canadian examples. In some places, the Canadian content is fun, like the hockey goalie's “Quantum mechanical five hole” in Chapter 7. In other places, Canadian chemistry examples are serious and important, like the chemistry of the oil sands (Chapter 21). Wherever Canadian content appears in this edition, it is there to promote student engagement. This book is meant for the Canadian student. 
  • Current Theories. We have updated the text so that the most current, consensus scientific view is described. This is most notable in the case of bonding theory and the so-called expanded octet. In this case, evidence shows that the d orbitals have a negligible contribution to bonding, which means that full sp3d and sp3d2 hybridizations should no longer be included in bonding theories, even though this idea continues to appear in general chemistry textbooks. This Canadian edition reflects the most current understanding of chemical phenomenon, at the first-year level .
  • S.I. units of measurement are used exclusively. Imperial units such as the gallon, pound, and the Fahrenheit scale of temperature have not been used in modern science for over a generation. IUPAC recommended d fining standard pressure as 1 bar (or 100 kPa) back in 1982. This is the standard that has been adopted by chemists worldwide and is almost exclusive in second-year physical chemistry texts.

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What can the AI Study Tool do?

  • Generate simplified explanations of challenging sections
  • Summarize material to help learners focus on key topics and ideas
  • Students can ask for multiple choice or short answer questions related to a specific chapter or section to help fill knowledge gaps
  • For extra practice, students can also generate flashcards and notes based on their chat interaction with the tool

New and updated features of this title

  • NEW! GapFinder helps students identify and remediate knowledge gaps that can prevent them from succeeding in their course. With GapFinder, instructors can assign GapFinder Diagnostics modules, and students can access GapFinder for self-study at any time.
  • NEW! Algorithmic Questions. We are excited to be adding new super algorithmic questions to the Mastering Chemistry item library.

Chapter Changes

  • Chapter 5 (Gases), we revised the section on barometers and units of pressure to demonstrate how atmospheric pressure is measured by a barometer, and how that connects to the different units of pressure that we use interchangeably. We added a section on the combined gas law, which is a conceptual bridge from the simple gas laws to the ideal gas law, including the addition of worked examples of the combined gas law. We also added a worked example on using the van der Waals equation.
  • Chapter 6 (Thermochemistry), we revised Section 6.8 (Relationships Involving ∆rH) so that the examples use real chemical equations instead of hypothetical ones. This reflects our shared philosophy that chemistry students should work with as many real examples as possible.
  • Chapter 7 (The Quantum-Mechanical Model of the Atom) is one of the most important foundational chapters in general chemistry texts. We believe it is important that students are given an accurate yet accessible introduction to this important subject. In this edition, we added new content that is intended to demystify quantum, or wave, mechanics by showing how the model arises from treating electrons as standing waves, and then introducing students to the concept of a particle in a one-dimensional box. New content includes several end-of-chapter problems geared to understanding the particle-in-a-box model. We also revised the section on hydrogen-like wave functions to make it more accessible for students.
  • Chapter 14 (Chemical Equilibrium), we rearranged the content so that the foundational concepts of Le Châtelier's principle are covered before the “math” of equilibrium expressions. Further, we expanded coverage of the law of mass action to better show how it arises from equal forward and reverse reaction rates at equilibrium.

Important Digital Assets in Mastering

  • New GenAI Study Tool. We’ve heard how important it is for students to use reliable AI tools in responsible and productive ways. To that end, Pearson is focused on creating tools that combine the power of generative AI with trusted Pearson content to provide students with a simplified study experience, delivering on-demand and personalised support that compliments your teaching and aligns with the text you’ve chosen.
  • Key Concept Videos: Combine artwork from the textbook with 2D and 3D animations to create a dynamic on-screen viewing and learning experience. These short videos include narration and brief live-action clips of author Nivaldo Tro, explaining the key concepts in general chemistry to give students the foundation they need.
  • Conceptual Connections allow students to interact with all conceptual connections within the Pearson eText, allowing students to study on their own and test their understanding in real-time. Complete with answer-specific feedback written by the author himself, these interactives help students extinguish misconceptions and deepen their understanding of important topics, making reading an active experience.
  • Interactive Worked Examples are digital versions of select worked examples from the text that instruct students how to break down problems using Tro's “Sort, Strategize, Solve, and Check” technique. 
  • NEW! GapFinder helps students identify and remediate knowledge gaps that can prevent them from succeeding in their course. With GapFinder, instructors can assign GapFinder Diagnostics modules, and students can access GapFinder for self-study at any time.
  • NEW! Algorithmic Questions. We are excited to be adding new super algorithmic questions to the Mastering Chemistry item library. 
  • Ready-to-Go Study Tools in the Mastering Chemistry Study Area help students master the toughest topics (as identified by professors and fellow students completing homework and practicing for exams). Key Concept Videos, Interactive Worked Examples, and problem sets with answer-specific feedback are all in one easy to navigate place to keep students focused and give them the scaffolded support they need to succeed.
  • Missed This? feature appears in the end-of-chapter Self-Assessment Quizzes and each odd-numbered Problems by Topic exercise. Missed This? provides sections to read and videos to watch to help students remediate where necessary.
  1. Units of Measurement for Physical and Chemical Change
  2. Atoms and Elements
  3. Molecules, Compounds, and Nomenclature
  4. Chemical Reactions and Stoichiometry
  5. Gases
  6. Thermochemistry
  7. The Quantum-Mechanical Model of the Atom
  8. Periodic Properties of the Elements
  9. Chemical Bonding I: Lewis Theory
  10. Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory
  11. Liquids, Solids, and Intermolecular Forces
  12. Solutions
  13. Chemical Kinetics
  14. Chemical Equilibrium
  15. Acids and Bases
  16. Aqueous Ionic Equilibrium
  17. Gibbs Energy and Thermodynamics
  18. Electrochemistry
  19. Radioactivity and Nuclear Chemistry
  20. Organic Chemistry I: Structures
  21. Organic Chemistry II: Reactions
  22. Biochemistry
  23. Chemistry of the Nonmetals
  24. Metals and Metallurgy
  25. Transition Metals and Coordination Compounds

Nivaldo Tro has been teaching college Chemistry since 1990 and is currently teaching at Santa Barbara Community College. He received his Ph.D. in chemistry from Stanford University for work on developing and using optical techniques to study the adsorption and desorption of molecules to and from surfaces in ultrahigh vacuum. He then went on to the University of California at Berkeley, where he did postdoctoral research on ultrafast reaction dynamics in solution. Professor Tro has been awarded grants from the American Chemical Society Petroleum Research Fund, the Research Corporation, and the National Science Foundation to study the dynamics of various processes occurring in thin adlayer films adsorbed on dielectric surfaces. Professor Tro lives in Santa Barbara with his wife, Ann, and their four children, Michael, Ali, Kyle, and Kaden. In his leisure time, Professor Tro enjoys mountain biking, surfing, and being outdoors with his family.

Travis Fridgen is currently Associate Dean of Science and Professor of Chemistry at Memorial University in St. John’s, Newfoundland and Labrador. His research group studies the energetics, reactions, and structures of gaseous self-assembled complexes composed of metal ions and biologically relevant molecules such as DNA bases, amino acids, and peptides using a combination of mass spectrometry, tunable infrared lasers, and computational chemistry. His research program is aimed at answering fundamental questions such as how metal cations affect the intramolecular noncovalent interactions (intramolecular forces–Chapter 11) and the structures of biologically relevant molecules. He has also always been interested in chemical and science education. He graduated with a B.Sc. (Hons) in chemistry from Trent University and a B.Ed. from Queen’s University. His Ph.D. in physical chemistry is from Trent and Queen’s, where he studied the spectroscopy of matrix-isolated reactive species, and his postdoctoral studies were conducted at the University of Waterloo, where he began using mass spectrometric methods to study the kinetics and thermodynamics of ion-molecule reactions. As an assistant professor at Wilfrid Laurier University, he initiated a collaboration with a group of researchers from France to spectroscopically determine structures of gas phase ions. He has taught physical chemistry courses at all levels, but mostly enjoys teaching first year. He was awarded the inaugural Dean of Science Distinguished Teaching Award and the President’s Award for Distinguished Teaching.

Lawton Shaw is currently Associate Professor of Chemistry and Chair of the Centre for Science at Athabasca University. He received his Ph.D. in chemistry from the University of Calgary in the area of photochemical reaction mechanisms of organometallic complexes. Shortly after graduating, he joined the full-time teaching faculty at Mount Royal College in Calgary, where he developed one of the first science courses at Mount Royal that was delivered partially online. This work led to a serious interest in online and distance education. In 2005, he joined the Centre for Science at Athabasca University, where he currently teaches and coordinates distance-delivered chemistry courses. This experience led to the book Accessible Elements: Teaching Science Online and at a Distance, which he co-edited. His research interests are split between the realms of teaching/education and environmental chemistry. He is a former president of College Chemistry Canada. He has extensive experience with the Athabasca University Faculty Association, serving as President from 2014 to 2017.

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