Table of Contents

July 2007
Volume 84, Issue 7
Pages 1079-1232
About the Cover:

Analyzing for Lead in Cell Phone Circuit Boards. Disposal of electronic waste is a growing problem. Weidenhamer describes a determination of the lead content of discarded consumer products that students can readily appreciate. In the experiment, circuit board samples from old cell phones are digested in aqua regia and analyzed for lead following dilution. This lab is intended to demonstrate the concept of atomic absorption (AA) by qualitative screening of circuit board materials and to show the use of AA for quantitative analysis of environmental samples. The

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Chemical Education Today

Celebrate Communication!

John W. Moore
p 1079
Publication Date (Web): July 1, 2007 (Editorial)
DOI: 10.1021/ed084p1079
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Small Adjustments, Big Improvements

Laura E. Slocum , Erica K. Jacobsen
p 1081
Publication Date (Web): July 1, 2007 (Editorial)
DOI: 10.1021/ed084p1081
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Research Advances. Ingenious New Delivery System for Antioxidant SOD; Toward Development of an Anticancer "Egg"; Vegetable Soup Chemical Reactions

Angela G. King
p 1082
Publication Date (Web): July 1, 2007 (Report)
DOI: 10.1021/ed084p1082

The Future of U.S. Chemistry Research: Benchmarks and Challenges

Charles P. Casey , Tina M. Masciangioli , Joseph S. Francisco
p 1089
Publication Date (Web): July 1, 2007 (Report)
DOI: 10.1021/ed084p1089

Chemistry Education: Experiments Worth Running

Mary M. Kirchhoff
p 1090
Publication Date (Web): July 1, 2007 (Report)
DOI: 10.1021/ed084p1090
History, Education, and Documentation

Celebrating 20 Years of National Chemistry Week

Ingrid Montes , Judith Jankowski
p 1092
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1092
History, Education, and Documentation

High School Day, Chicago ACS Meeting

Ami LeFevre , Linda Bennett , Lee R. Marek
p 1094
Publication Date (Web): July 1, 2007 (Report)
DOI: 10.1021/ed084p1094

Committee Reports, March 2007

p 1096
Publication Date (Web): July 1, 2007 (Report)
DOI: 10.1021/ed084p1096
History, Education, and Documentation

Calcium Carbonate

Jay A. Young
p 1102
Publication Date (Web): July 1, 2007 (Communication)
DOI: 10.1021/ed084p1102

Orthophosphoric Acid (85%)

Jay A. Young
p 1103
Publication Date (Web): July 1, 2007 (Communication)
DOI: 10.1021/ed084p1103

News and Announcements

JCE staff
p 1105
Publication Date (Web): July 1, 2007 (News and Announcements)
DOI: 10.1021/ed084p1105
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Research at Two-Year Colleges

Jane Slezak
p 1108
Publication Date (Web): July 1, 2007 (Letter)
DOI: 10.1021/ed084p1108.1
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Research at Two-Year Colleges

Onofrio G. Gaglione
p 1108
Publication Date (Web): July 1, 2007 (Letter)
DOI: 10.1021/ed084p1108.2
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Teaching Chemistry Lab Safety

Henry A. Carter
p 1108
Publication Date (Web): July 1, 2007 (Letter)
DOI: 10.1021/ed084p1108.3
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Markovnikov's Rule

Robert C. Kerber
p 1109
Publication Date (Web): July 1, 2007 (Letter)
DOI: 10.1021/ed084p1109.1
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Markovnikov's Rule

Predrag-Peter Ilich
p 1109
Publication Date (Web): July 1, 2007 (Letter)
DOI: 10.1021/ed084p1109.2
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The Periodic Table at a Glance (M. A. Beckett and A. W. G. Platt)

L. L. Pesterfield
p 1110
Publication Date (Web): July 1, 2007 (Book and Media Review)
DOI: 10.1021/ed084p1110.1
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The Enlightened Joseph Priestley: A Study of His Life and Work from 1773 to 1804 (Robert E. Schofield)

A. Truman Schwartz
p 1110
Publication Date (Web): July 1, 2007 (Book and Media Review)
DOI: 10.1021/ed084p1110.2
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Chemistry for Everyone

Determining the Pressure inside an Unopened Carbonated Beverage

Hans de Grys
p 1117
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1117

Mentos and the Scientific Method: A Sweet Combination

Heather Patrick , Brenda Harmon , Janet Coonce and Jack F. Eichler
p 1120
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1120

The Chemistry of Swimming Pool Maintenance

Carl Salter and David L. Langhus
p 1124
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1124
History, Education, and Documentation

In the Classroom

Defining and Teaching pH

Richard F. Burton
p 1129
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1129
History, Education, and Documentation

Enhancing Student Performance in First-Semester General Chemistry Using Active Feedback through the World Wide Web

Kent A. Chambers , Bob Blake
p 1130
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1130
History, Education, and Documentation

Connecting Acids and Bases with Encapsulation...and Chemistry with Nanotechnology

Brett Criswell
p 1136
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1136
History, Education, and Documentation

Mistake of Having Students Be Mendeleev for Just a Day

Brett Criswell
p 1140
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1140
History, Education, and Documentation

News from the Periodic Table: An Introduction to "Periodicity Symbols, Tables, and Models for Higher-Order Valency and Donor–Acceptor Kinships"

Frank Weinhold , Henry A. Bent
p 1145
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1145

Mass-Elastic Band Thermodynamics: A Visual Teaching Aid at the Introductory Level

William C. Galley
p 1147
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1147
History, Education, and Documentation

Effective Use of Demonstration Assessments in the Classroom Relative to Laboratory Topics

David T. Pierce , Thomas W. Pierce
p 1150
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1150
History, Education, and Documentation

In the Laboratory

A Student Laboratory Experiment Based on the Vitamin C Clock Reaction

Ed Vitz
p 1156
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1156
History, Education, and Documentation

Vanillin Synthesis from 4-Hydroxybenzaldehyde

Douglass F. Taber , Shweta Patel , Travis M. Hambleton and Emma E. Winkel
p 1158
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1158
History, Education, and Documentation

Resveratrol Photoisomerization: An Integrative Guided-Inquiry Experiment

Elyse Bernard and Philip Britz-McKibbin , Nicholas Gernigon
p 1159
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1159
History, Education, and Documentation

Molecular Models of Resveratrol

William F. Coleman
p 1161
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1161
History, Education, and Documentation
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Quantitative Measurement of Trans-Fats by Infrared Spectroscopy

Edward B. Walker , Don R. Davies and Mike Campbell
p 1162
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1162
History, Education, and Documentation

Circuit Board Analysis for Lead by Atomic Absorption Spectroscopy in a Course for Nonscience Majors

Jeffrey D. Weidenhamer
p 1165
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1165
History, Education, and Documentation

Absorption and Scattering Coefficients: A Biophysical-Chemistry Experiment Using Reflectance Spectroscopy

Gabriela B. Cordon and M. Gabriela Lagorio
p 1167
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1167

An Advanced Undergraduate Chemistry Laboratory Experiment Exploring NIR Spectroscopy and Chemometrics

Randall Wanke , Jennifer Stauffer
p 1171
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1171
History, Education, and Documentation

From the Research Bench to the Teaching Laboratory: Gold Nanoparticle Layering

Maria Oliver-Hoyo and Ralph W. Gerber
p 1174
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1174
History, Education, and Documentation

Building a Low-Cost, Six-Electrode Instrument To Measure Electrical Properties of Self-Assembled Monolayers of Gold Nanoparticles

Ralph W. Gerber and Maria Oliver-Hoyo
p 1177
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1177
History, Education, and Documentation

A Bioanalytical Chemistry Experiment for Undergraduate Students: Biosensors Based on Metal Nanoparticles

John Njagi , John Warner and Silvana Andreescu
p 1180
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1180
History, Education, and Documentation

Modifying Optical Properties of ZnO Films by Forming Zn1-xCoxO Solid Solutions via Spray Pyrolysis

Susan M. Shih , Anne K. Bentley , Gabriela C. Weaver , Cianán B. Russell , William L. Fornes and Kyoung-Shin Choi
p 1183
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1183

Analysis and Identification of Acid–Base Indicator Dyes by Thin-Layer Chromatography

Daniel D. Clark
p 1186
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1186
History, Education, and Documentation

Imidazole as a pH Probe: An NMR Experiment for the General Chemistry Laboratory

William J. Hagan Jr., Dennis L. Edie and Linda B. Cooley
p 1188
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1188
History, Education, and Documentation

An Introduction to Multivariate Curve Resolution-Alternating Least Squares: Spectrophotometric Study of the Acid–Base Equilibria of 8-Hydroxyquinoline-5-sulfonic Acid

Cristina Rodríguez-Rodríguez , José Manuel Amigo , Jordi Coello and Santiago Maspoch
p 1190
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1190
History, Education, and Documentation

Research: Science and Education

Multivariate Curve Resolution Methods Illustrated Using Infrared Spectra of an Alcohol Dissolved in Carbon Tetrachloride

Bjørn Grung and Egil Nodland , Geir Martin Førland
p 1193
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1193
History, Education, and Documentation

The Mechanism of Covalent Bonding: Analysis within the Hückel Model of Electronic Structure

Sture Nordholm and Andreas Bäck , George B. Bacskay
p 1201
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1201
History, Education, and Documentation

A Study of Turkish Chemistry Undergraduates' Understanding of Entropy

Judith M. Bennett , Mustafa Sözbilir
p 1204
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1204

Teaching a Modified Hendrickson, Cram, and Hammond Curriculum in Organic Chemistry

B. Gray Bowman , Joel M. Karty and Gene Gooch
p 1209
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1209

The Molecular Weight Distribution of Polymer Samples

Arturo Horta and M. Alejandra Pastoriza
p 1217
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1217
History, Education, and Documentation

Information • Textbooks • Media • Resources

Constructing a High-Sensitivity, Computer-Interfaced, Differential Thermal Analysis Device for Teaching and Research

L. M. Martínez , M. Videa , F. Mederos and J. Mesquita
p 1222
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1222
History, Education, and Documentation

Reaction-Map of Organic Chemistry

Steven Murov
p 1224
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1224
History, Education, and Documentation

Calculating Interaction Energies Using First Principle Theories: Consideration of Basis Set Superposition Error and Fragment Relaxation

Karl N. Kirschner , Jennifer B. Sorensen , J. Phillip Bowen
p 1225
Publication Date (Web): July 1, 2007 (Article)
DOI: 10.1021/ed084p1225

Demystifying Some Advanced Undergraduate Chemical Computations

Theresa Julia Zielinski
p 1230
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1230
History, Education, and Documentation
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Construction of the Electronic Radial Wave Functions and Probability Distributions of Hydrogen-like Systems

Thomas S. Kuntzleman
p 1231
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1231.1
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A Brief Introduction to the Gaussian Distribution, Sample Statistics, and the Student's t Statistic

Scott E. Van Bramer
p 1231
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1231.2
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Exploring the Harmonic Oscillator Wave Functions

Theresa Julia Zielinski
p 1232
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1232.1
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Particle-in-a-Box Dynamics

Theresa Julia Zielinski , David M. Hanson
p 1232
Publication Date (Web): July 1, 2007 (Tech Report)
DOI: 10.1021/ed084p1232.2
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