California Institute of Technology > Image Archive > Portrait of Amedeo Avogadro (1776-1856)

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Portrait of Amedeo Avogadro (1776-1856)
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California Institute of Technology
Image Archive
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Materials from the Caltech Archives are made available online for research purposes. Permission for reproduction, distribution, public display, performance, or publication must be obtained in writing from the Head of Archives. The Caltech Archives makes no representation that it is the copyright owner in all of its holdings. It is the responsibility of the user to obtain all necessary rights and clearances for use of materials. For questions, contact Head of Archives.
Photograph of an etched print portrait of chemist Amedeo Avogadro (full name being, Lorenzo Romano Amedeo Carlo Avogadro di Quaregua e di Cerreto), from a drawing by C. Sentier. Avogadro, who became a physics professor at the University of Turin in 1820, is noted for the theory of molarity and molecular weight, as well as Avogadro's Law, which states that equal volumes of gases, at the same temperature and pressure, contain the same number of molecules.
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