- Improved the treatment of limiting reagent (Section 3.9).
- Provided clearer explanation of atmospheric pressure (Section 5.2).
- Completely reorganized Chapter 6 so the topics flow in a more logical manner. In addition, the units for enthalpy change for chemical reactions (∆H) are now given in kJ/mol. The same per mole unit is used for changes in entropy (∆S) and Gibbs free energy (∆G) in Chapter 18. As a result, the units are consistent in important thermodynamic equations such as Equation (18.14).
- Used radial probability plots to explain the shielding effect in Chapter 7.
- Clarified the influence of temperature on a reacting system at equilibrium in Chapter 14.
- Improved the treatment of acid strength that now includes carboxylic acids in Chapter 15.
- Substantially revised the discussion of entropy and Gibbs free energy in Chapter 18.
- Added many new end-of-chapter problems and revised a number of others. As in previous editions, there is a good mix of easy, intermediate, and more challenging problems.
- Added two new Chemical Mysteries in Chapters 1 and 24.
Art
- A completely new design can be seen throughout the eighth edition. Each chapter opens with a two-page spread containing a photo with accompanying molecular models to illustrate the chemical or physical process at the molecular level.
- Many of the line art drawings have a new look while still maintaining accurate chemical information.
- Molecular art, created by the Spartan drawing program, is an asset I cannot resist using to emphasize molecular geometry. In this edition, I have expanded the use of electrostatic potential maps that show charge distribution in molecules according to the colors of the rainbow (red through blue tracks regions of greater negative charge to greater positive charge).
- added new molecular art to line drawings and photos and to a number of end-of-chapter problems.
- updated the photo program to complement the visual layout of the design.
Pedagogy
- Worked Examples in the eighth edition have been substantially revised. Added is a strategy step after stating the problem, followed by a step-by-step solution process, and then a check requesting the student to look at the answer to see if it makes sense.
- A good learning tool is to sketch out the inner workings of a problem. In some of the Worked Examples, this type of drawing is included (for example, see Example 6.1 on p. 222). It is what a scientist would do as he/she works out a problem (sometimes called the back-of-the-envelope calculations).
- Inside the front cover of this text you will see a periodic table. I have added the names of the elements under the symbols to this table. This format makes it convenient to have the relevant information all at the same location.
- The Interactive Activity Summary in the chapter opening pages allows the student and instructor to see at a glance the media that can be incorporated into the learning process.
- Within the text, an icon (insert icon) shows the student where the concept of the animation or interactive is introduced. The icon also tells exactly where the student can find them for viewing. For the instructor, there are also directions for finding the animation or interactive in the instructor materials.
Media
- Animations
With the creation of eleven NEW animations, we have a library of animations created to specifically support Chemistry by Chang.
- Interactives
Two sets of interactives are available with Chemistry. The NEW interactives allow the student to manipulate several variables. The student can “see” how changes affect the topic being studied. The seven topics include stoichiometry, gas laws, kinetics, equilibrium, acid/base, nuclear reactions and radioactivity and electrochemical cell.
- Online Learning Center
The student will find the animation center and interactive center in the Online Learning Center for Chemistry.
Annotated Instructor’s Edition
- Included are all resources available to the instructor marked by icons located in the margins of the text. Information is provided on the integration of media (animations, interactives, Online Learning Center) and instructions on where the instructor will find the various media.
- Difficulty level of the end-of-chapter problems are marked
- Various chemical disciplines that the problems are related to are marked.
- Information on quality demonstration videos is provided
- Tips for the instructor are given
- Icons marking the digital assets available on the Digital Content Manager are provided
To obtain an instructor login for this Online Learning Center, ask your local sales representative.
If you're an instructor thinking about adopting this textbook, request a free copy for review.
2005 McGraw-Hill Higher Education