"Lec 19 - Oxygen and the Chemical Revolution (Beginning to 1789)" Freshman Organic Chemistry (CHEM 125) This lecture begins a series describing the development of organic chemistry in chronological order, beginning with the father of modern chemistry, Lavoisier. The focus is to understand the logic of the development of modern theory, technique and nomenclature so as to use them more effectively. Chemistry begins before Lavoisier's "Chemical Revolution," with the practice of ancient technology and alchemy, and with discoveries like those of Scheele, the Swedish apothecary who discovered oxygen and prepared the first pure samples of organic acids. Lavoisier's Traité Élémentaire de Chimie launched modern chemistry with its focus on facts, ideas, and words. Lavoisier weighed gases and measured heat with a calorimeter, as well as clarifying language and chemical thinking. His key concepts were conservation of mass for the elements and oxidation, a process in which reaction with oxygen could make a "radical" or "base" into an acid. 00:00 - Chapter 1. The Predecessors of Chemists: Alchemists 08:50 - Chapter 2. Scheele's Acids and Elements 19:58 - Chapter 3. On Radicals, Lavoisier, and the Chemical Revolution 29:54 - Chapter 4. The Elementary Treatise of Chemistry: Facts, Ideas, and Words 36:51 - Chapter 5. New Nomenclature: Elements, Calories, and Radicals Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Fall 2008.
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Channels: Chemistry (General)
Duration: 47m 10s
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