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Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e di Cerreto,[1] Count of Quaregna and Cerreto (9 August 1776, Turin,Piedmont – 9 July 1856) was an Italian scientist. He is most noted for his contributions to molecular theory, including what is known as Avogadro's law. In tribute to him, the number of elementary entities (atoms, molecules, ions or other particles) in 1 mole of a substance, 6.02214179(30)×1023, is known as the Avogadro constant.
Avogadro's Law Avogadro's law states that equal volumes of gases, at the same temperature and pressure, contain the same number of molecules. Avogadro's hypothesis wasn't generally accepted until after 1858 (after Avogadro's death), when the Italian chemist Stanislao Cannizzaro was able to explain why there were some organic chemical exceptions to Avogadro's hypothesis. One of the most important contributions of Avogadro's work was his resolution of the confusion surrounding atoms and molecules (although he didn't use the term 'atom'). Avogadro believed that particles could be composed of molecules and that molecules could be composed of still simpler units, atoms.The number of molecules in a mole (one gram molecular weight) was termed Avogadro's number (sometimes called Avogadro's constant) in honor of Avogadro's theories. Avogadro's number has been experimentally determined to be 6.023x1023 molecules per gram-mole.
Robert Boyle (1627 - 1691)
Born:
January 25, 1627 in Munster, Ireland. Seventh son and fourteenth child of fifteen of Richard Boyle, Earl of Cork.
Died:
December 30, 1691 at 64 years old.
Claim to Fame:
Early proponent of the elemental nature of matter and the nature of vacuum. Known best forBoyle's Law.
Notable Awards and Publications:
Founding Fellow of the Royal Society of London
Author: New Experiments Physio-Mechanicall, Touching the Spring of the Air and its Effects (Made, for the Most Part, in a New Pneumatical Engine)[ (1660) Author: The Sceptical Chymist (1661)
Boyle's Law:
The ideal gas
Avogadro's Law Avogadro's law states that equal volumes of gases, at the same temperature and pressure, contain the same number of molecules. Avogadro's hypothesis wasn't generally accepted until after 1858 (after Avogadro's death), when the Italian chemist Stanislao Cannizzaro was able to explain why there were some organic chemical exceptions to Avogadro's hypothesis. One of the most important contributions of Avogadro's work was his resolution of the confusion surrounding atoms and molecules (although he didn't use the term 'atom'). Avogadro believed that particles could be composed of molecules and that molecules could be composed of still simpler units, atoms.The number of molecules in a mole (one gram molecular weight) was termed Avogadro's number (sometimes called Avogadro's constant) in honor of Avogadro's theories. Avogadro's number has been experimentally determined to be 6.023x1023 molecules per gram-mole.
Robert Boyle (1627 - 1691)
Born:
January 25, 1627 in Munster, Ireland. Seventh son and fourteenth child of fifteen of Richard Boyle, Earl of Cork.
Died:
December 30, 1691 at 64 years old.
Claim to Fame:
Early proponent of the elemental nature of matter and the nature of vacuum. Known best forBoyle's Law.
Notable Awards and Publications:
Founding Fellow of the Royal Society of London
Author: New Experiments Physio-Mechanicall, Touching the Spring of the Air and its Effects (Made, for the Most Part, in a New Pneumatical Engine)[ (1660) Author: The Sceptical Chymist (1661)
Boyle's Law:
The ideal gas