Avogadro Constant: 201 Years of Counting Molecules

Authors

  • P. Slavíček Department of Physical Chemistry, Institute of Chemical Technology, Prague

Keywords:

Avogadro constant, amount of substance, XRCD, chemistry history, SI unit system

Abstract

A brief history of molecule counting in the last two centuries is described. The story started with early determinations of the Avogadro constant by Loschmidt and others and ends for the time being with its modern spectroscopic determinations. The relation of high-precision Avogadro constant measurements to modern metrology is discussed in the context of recent suggestions of reforms in the SI unit system.

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Published

2012-11-15

How to Cite

Slavíček, P. (2012). Avogadro Constant: 201 Years of Counting Molecules. Chemické Listy, 106(11), 1023–1028. Retrieved from http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/811

Issue

Vol. 106 No. 11 (2012)

Section

Articles