Dec 21, 2009
German chemist (a scientist specializing in the composition, properties, and reactions of matter) Friedrich Wohler (1800-1882), in 1828, synthesized (artificially made) urea from ammonia and cyanic acid. Urea is a by-product of protein metabolism (breakdown), which is excreted in the urine of many mammals. The laboratory production of urea defied the vital-force theory, which held that substances derived from living beings could not be copied using inorganic (nonliving) compounds.
Swedish chemist and vital-force theory proponent Jons Jakob Berzelius (1779-1848) had proposed that organic compounds and inorganic compounds were produced by entirely different processes. He believed that organic compounds were formed under the influence of a "vital force" and, for that reason, were incapable of being prepared...
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