Berthollet's law

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• Berthollet, Claude-Louis — ▪ French chemist Introduction born Dec. 9, 1748, Talloires, Savoy, France died Nov. 6, 1822, Arcueil       central French figure in the emergence of chemistry as a modern discipline in the late 18th century. He combined acute experimental skills… …   Universalium

• Berthollet , Comte Claude-Louis — (1748–1822) French chemist Born in Talloires, France, Berthollet studied medicine at Turin and gained his MD in 1768. He went to Paris in 1772 where he began publishing chemical researches in 1776 and was elected a member of the Académie… …   Scientists

• Law of definite proportions — In chemistry, the law of definite proportions, sometimes called Proust s Law, states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the law of constant composition, which… …   Wikipedia

• Law of mass action — For other uses, see Mass action (disambiguation). In Chemistry, the law of mass action is a mathematical model that explains and predicts behaviors of solutions in dynamic equilibrium. It can be described with two aspects: 1) the equilibrium… …   Wikipedia

• law — 1. A principle or rule. 2. A statement of fact detailing a sequence or relation of phenomena that is invariable under given conditions. SEE ALSO: principle, rule, theorem. [A.S. lagu] Alexander l. states that a jerky nystagmus becomes worse when… …   Medical dictionary

• Berthollet — Claude L., French chemist, 1748–1822. See B. law …   Medical dictionary

• Claude Louis Berthollet — Claude Louis Berthollet. Claude Louis Berthollet (9 December 1748 – 6 November 1822) was a Savoyard French chemist who became vice president of the French Senate in 1804.[1] Contents …   Wikipedia

• definite proportions, law of — ▪ chemistry       statement that every chemical compound contains fixed and constant proportions (by weight) of its constituent elements. Although many experimenters had long assumed the truth of the principle in general, the French chemist… …   Universalium

• Proust, Joseph-Louis — ▪ French chemist Introduction also known as  Luis Proust  born Sept. 26, 1754, Angers, France died July 5, 1826, Angers  French chemist who proved that the relative quantities of any given pure chemical compound s constituent elements remain… …   Universalium

• History of Physics —     History of Physics     † Catholic Encyclopedia ► History of Physics     The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… …   Catholic encyclopedia

• Joseph Proust — Infobox Person name=Joseph Louis Proust caption=French chemist quotation=unknown birth date=birth date|1754|9|26|mf=y birth place= Angers, France dead=dead death date=death date and age|1826|7|5|1754|9|26|mf=y death place=Paris,France Joseph… …   Wikipedia