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Chemistry question: Who developed law of definite proportions? Joseph Proust first observed it,experimented it,and proved it,but John Dalton placed it on a firm theoretical basis. ... Discuss the question "Who developed law of definite proportions?"
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Law of definite proportions - Wikipedia, the free encyclopedia
In chemistry, the law of definite proportions and also the elements states that a chemical compound always contains exactly the same proportion of elements by mass. An equivalent statement is the l...
en.wikipedia.org/wiki/Law_of_definite_proportions
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b. Who developed it? (4 points) ... a. What is the law of definite proportions? (8 points) ... b. How is it different from the law of definite proportions? (8 points)
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www.chemheritage.org/EducationalServices/webquest/dalto...
www.chemheritage.org/EducationalServices/webquest/dalton.htm
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A few years later, Joseph Proust, doing experiments similar to Lavoisier, discovered the Law of Definite Proportions (also known as the Law of Constant Composition). This law states that a compound always has the same proportion of elements by mass. When a known mass of water, for instance, is separated into...
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www.webbschool.com/~brice/chap1.htm
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John Dalton (1766-1844) developed the first useful atomic theory of matter around 1803. In the course of his studies on meteorology, Dalton concluded that evaporated water exists in air as an independent gas. He wondered how water and air could occupy the same space at the same time, when obviously solid bodies can't.
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antoine.frostburg.edu/chem/senese/101/atoms/dalton.shtm...
antoine.frostburg.edu/chem/senese/101/atoms/dalton.shtml
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One of the fundamental observations of modern chemistry, the law of definite proportions states that, in a pure compound, the elements combine in definite proportion to each other. ... The table encompasses understanding developed through the law, rather than the other way around.
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nostalgia.wikipedia.org/wiki/Law_of_definite_proportion...
nostalgia.wikipedia.org/wiki/Law_of_definite_proportions
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The law of definite proportions might seem obvious to the modern chemist, inherent in the very definition of a chemical compound. At the end of the 18th century, however, when the concept of a chemical compound had not yet been fully developed, the law was novel.
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www.wikidoc.org/index.php/Law_of_definite_composition
www.wikidoc.org/index.php/Law_of_definite_composition
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Learn more about law of definite proportions with a free trial on Britannica.com ... Search another word or see Law of definite proportions on Thesaurus | Reference ... Who developed the l...
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Law of multiple proportions - Wikipedia, the free encyclopedia
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The law of multiple proportions is one of the basic laws in chemistry, and is a major tool of chemical measurement (stoichiometry). This law states that when elements combine they do so in a ratio o...
en.wikipedia.org/wiki/Law_of_multiple_proportions
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