Open Yale CoursesCHEM 125: Freshman Organic ChemistryLecture 20 - Rise of the Atomic Theory (1790-1805)<< previous session| next session >>Overview:This lecture traces the development of elemental analysis as a technique for the determination of thecomposition of organic compounds beginning with Lavoisier's early combustion and fermentationexperiments, which showed a new, if naïve, attitude toward handling experimental data. Dalton's atomictheory was consistent with the empirical laws of definite, equivalent, and multiple proportions. The basis ofour current notation and of precise analysis was established by Berzelius, but confusion about atomic weightmultiples, which could have been clarified early by the law of Avogadro and Gay-Lussac, would persist formore than half a century.Problem sets/Reading assignment:Reading assignments, problem sets, PowerPoint presentations, and other resources for this lecture can beaccessed from Professor McBride's on-campus course website, which was developed for his Fall 2008
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