Molecular art

FIGURE 4.2 Drawings of the common glassware used in titrimetric analysis (not drawn to scale). Left, buret center, volumetric pipet right, volumetric flask. (From ChemClip Art 1000, a product of Molecular Arts Corporation, Anaheim, California. With permission.)... 

Molecular Arts Corporation 1532 East Katella Avenue Anaheim, CA 92805, U.S.A. 

A FIGURE 17.7 Titration of a strong acid with a strong base. The pH curve for titration of 50.0 mL of a 0.100 A/7 solution of hydroohioric acid with a 0.100 M solution of NaOH(aq). For clarity, water molecuies have been omitted from the molecular art. 

Molecular art appears in various formats to serve different needs. Molecular models help to visualize the three-dimensional arrangement of atoms in a molecule. Electrostatic potential maps illustrate the electron density distribution in molecules. Finally, there is the macroscopic-to-microscopic art, helping students understand processes at the molecular level. 

Molecular art Learning chemistry requires the ability to connect the macroscopic world of everyday life to the microscopic world of atoms and molecules. In this edition we have added molecular art to macroscopic pictures to emphasize this connection. 

This edition places a great emphasis on molecular reasoning. This chemical reasoning is illustrated with extensive new molecular art, much of it computer-generated. Some examples of the ways in which molecular art is used in this edition include the following ... 

Structures or reactions. Molecular art is used to give a molecular-level view of a concept being discussed, as in the following interpretation of a balanced chemical equation. 

Macro-micro art. Molecular art presented together with a photograph of a sample or an experiment clarifies the molecular behavior. 

I have also added new molecular art to line drawings and photos and to a number of end-of-chapter problems. In addition, we have updated the photo program to complement the visual layout of the design. Finally, we have updated the format of the periodic table throughout the text. 

There is a plethora of molecular art in the margin, enabling students to see the molecule under discussion. 

Visualizing chemical models. In many places in the text, concepts are explained first at the macroscopic level and then from a molecular point of view. Placed near many of these discussions, the text s celebrated graphics depict the phenomenon or change at the observable level in the lab, at the atomic level with superbly accurate molecular art, and at the symbolic level with the balanced equation. 

Molecules arc far too smaU for us to observe them directly. An effective means of visualizing them is by the use of molecular models. Throughout this book, we will represent matter at the molecular level using molecular art. the two-dimensional equivalent of molecular models. In these pictures, atoms are represented as spheres and atoms of particular elements are represented using specific colors. Table 1.1 lists some of the elements that you will encounter most often and the colors used to represent them in this book. 

Molecular art can be of ball-and-stick models, in which the bonds connecting atoms appear as sticks [Figure 1.2(b)], or of space-filling models, in which the atoms appear to overlap one another [Figure 1.2(c)]. Ball-and-stick and space filling models illustrate the specific, three-dimensional arrangement of the... 

ASSOCIATE PUBLISHER Petra Recter PROJECT EDITOR Jennifer Yee MARKETING MANAGER Kristine Ruff SENIOR PRODUCTION EDITOR Elizabeth Swain SENIOR DESIGNER Madelyn Lesure SENIOR MEDIA EDITOR Thomas Kulesa SENIOR ILLUSTRATION EDITOR Sandra Rigby SENIOR PHOTO EDITOR Lisa Gee COVER DESIGNER Carole Anson COVER IMAGE Don Paulson COVER MOLECULAR ART Norm Christiansen... 

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