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Amedeo Avogadro

Amedeo Avogadro
Born
Amedeo Carlo Avogadro

(1776-08-09)9 August 1776
Died9 July 1856(1856-07-09) (aged 79)
Turin, Piedmont-Sardinia
NationalityItalian
Known forAvogadro's law
Avogadro constant
Scientific career
FieldsChemistry
InstitutionsUniversity of Turin
Signature

Lorenzo Romano Amedeo Carlo Avogadro, Count of Quaregna and Cerreto[1] (/ˌævəˈɡɑːdr/,[2] also US: /ˌɑːv-/,[3][4][5] Italian: [ameˈdɛːo avoˈɡaːdro]; 9 August 1776 – 9 July 1856) was an Italian scientist, most noted for his contribution to molecular theory now known as Avogadro's law, which states that equal volumes of gases under the same conditions of temperature and pressure will contain equal numbers of molecules. In tribute to him, the ratio of the number of elementary entities (atoms, molecules, ions or other particles) in a substance to its amount of substance (the latter having the unit mole), 6.02214076×1023 mol−1, is known as the Avogadro constant. This constant is denoted NA, and is one of the seven defining constants of the SI.

  1. ^ Guareschi, Icilio (1911), "Amedeo Avogadro e la sua opera scientifica", Opere scelte di Amedeo Avogadro, Turin: Accademia delle scienze, pp. i–cxl.
  2. ^ "Avogadro, Amedeo". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 2022-08-24.
  3. ^ "Avogadro". Collins English Dictionary. HarperCollins. Retrieved 7 August 2019.
  4. ^ "Avogadro". Merriam-Webster.com Dictionary. Merriam-Webster. Retrieved 7 August 2019.
  5. ^ "Avogadro". Random House Webster's Unabridged Dictionary.

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