Slowinski/Wolsey/Rossi’s CHEMICAL PRINCIPLES IN THE LABORATORY, 13th Edition, maintains the high-quality, time-tested experiments and techniques that have made this student-friendly resource a perennial bestseller. Continuing to offer complete coverage of basic chemistry principles, the topics are presented in a direct, easy-to-understand manner. This edition revises every experiment to make the language simple, clear and current, while maintaining a friendly and accessible tone. Mathematical and laboratory procedures have been simplified and shortened, where possible, in light of the increasing time pressures that are faced in lab courses.