Some Web Stuff http://www.masteringchemistry.com Two essential web sites providing spectra are listed on the bottom of p.276. Acknowledgments No project of this scope is ever done alone.These are team efforts.and several people who have assisted and facilitated in one fashion or another deserve my thanks. Professor L.G.Wade,Jr.,your textbook author,is a remarkable person.He has gone to extraordinary lengths to make the textbook as clear,organized,informative,and insightful as possible. He has solicited and followed many suggestions on his text,and his comments on my solutions have been perceptive and valuable.We agreed early on that our primary goal is to help the students learn a fascinating and challenging subject,and all of our efforts have been directed toward that goal.I have appreciated our collaboration. My friend and colleague,Dr.Hasan Palandoken,has reviewed the entire manuscript for accuracy and style.His extraordinary diligence,attention to detail,and chemical wisdom have made this a better manual.Hasan stands on the shoulders of previous reviewers who scoured earlier editions for errors: Dr.Kristen Meisenheimer,Jessica Gilman Erakovich.Dr.Eric Kantorowski,and Dr.Dan Mattern. Mr.Richard King of Pasadena,Texas,Editorial Adviser,has offered numerous suggestions on how to clarify murky explanations.I am grateful to them all. The people at Pearson have made this project possible.Good books would not exist without their dedication,professionalism,and experience.Among the many people who contributed are:Lee Englander,who originally connected me with this project:Jeanne Zalesky,Executive Editor in Chemistry;Jennifer Hart,Senior Project Editor in Chemistry;and Coleen MeDonald,Assistant Editor in Chemistry The entire manuscript was roduced using ChemDraw,the remarkable software for drawing chemical structures developed by CambridgeSoft Corp.,Cambridge.MA. Finally,I appreciate my friends who supported me throughout this project,most notably my wife and friend of over forty-six years,Judy Lang.The students are too numerous to list,but it is for them that all this happens. Jan William Simek.Professor Emeritus Department of Chemistry and Biochemistry Cal poly state University San Luis Obispo,CA 93407 Email:jsimek@calpoly.edu DEDICATION To my inspirational chemistry teachers: loe plaskas who made the hatter Kurt Kaufman,who baked the cake; Carl Djerassi,who put on the icing; and to m arents Ervin J.and Imilda B.Simek. who had the original concept. vi Copyright2013 Pearson Education,Inc