This is the latest version of Charles H. Corwin’s best-selling, widely used lab manual. The Fourth Edition retains the highly effective format of a pre-laboratory assignment, a stepwise procedure, and a post-laboratory assignment. Corwin provides alerts to procedures that should be performed carefully and prelaboratory questions regarding safety; operations that present even minimal danger are omitted. He suggests environmentally “friendly” chemicals that do not contain lead, mercury, chromium, chloroform, or carbon tetrachloride. Line art illustrations demonstrate techniques for reading a metric ruler, graduated cylinder, thermometer, and buret; and instructions for using a laboratory burner, platform balance, beam balance, electronic balance, and volumetric pipet. Safety Precautions; Locker Inventory; Introduction to Chemistry; Instrumental Measurements; Density of Liquids and Solids; Freezing Points and Melting Points; Physical Properties and Chemical Properties; “Atomic Fingerprints”; Families of Elements; Identifying Cations in Solution; Identifying Anions in Solution; Analysis of a Penny; Determination of Avogadro’s Number; Empirical Formulas of Compounds; Analysis of Alum; Decomposing Baking Soda; Precipitating Calcium Phosphate; Generating Hydrogen Gas; Generating Oxygen Gas; Molecular Models and Chemical Bonds; Analysis of Saltwater; Analysis of Vinegar; Electrical Conductivity of Aqueous Solutions; Activity Series of Metals; Organic Models and Functional Groups; Separation of Food Colors and Amino Acids. A useful reference for chemistry professionals.