Avogadro, Amedeo

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Avogadro, Amedeo

(ov″ŏ-god′rō)
Italian physicist and chemist, 1776–1856.

Avogadro law

Equal volumes of gases at the same pressure and temperature contain equal numbers of molecules.

Avogadro number

The number of molecules, 6.0221367×1023, in one gram molecular weight of a compound.
References in periodicals archive ?
In 1811 an Italian physicist, Amedeo Avogadro (1776-1856), suggested that this might mean that all gases-at the same volume, pressure, and temperature-were made up of the same number of particles.