The Chemistry Book

Avogadro's number (symbolized N_A) is named in honor of Lorenzo Romano Amedeo Carlo Avogadro (1776-1856). ^[1] Avogadro's Number is also called Loschmidt's Number. ^[2] The concept was proposed by Avogadro and first experimentally determined during an observation of Brownian motion by Robert Brown in 1827. ^[3] The number determined in Millikan's oil drop experiment was quoted by textbooks for half a century.Avogadro’s number is the number of atoms in one mole Amadeo Avogadro’s was the author of “Avogadro’s Hypothesis” in 1811

The latest calculated value

According to NIST, the latest value is 6.022 141 79 x 10²³ mol^{-1 [4]}

Trivia

• An Avogadro's number of standard soft drink cans would cover the surface of the earth to a depth of over 200 miles.
• If you had Avogadro's number of unpopped popcorn kernels, and spread them across the United States of America, the country would be covered in popcorn to a depth of over 9 miles.
• If we were able to count atoms at the rate of 10 million per second, it would take about 2 billion years to count the atoms in one mole.

Read more from the Maricopa Website.

Biography

Biographical information

http://gemini.tntech.edu/~tfurtsch/scihist/avogadro.htm

http://mcdb.colorado.edu/courses/3280/Avogadro.htm

http://www.moleday.org/htdocs/numhist.html

http://physics.nist.gov/cgi-bin/cuu/Value?na|search_for=avogadro%27s+number

References

1. ↑ T.A. Furtsch, Tennessee Technological University, Cookeville
2. ↑ [http://mcdb.colorado.edu/courses/3280/Avogadro.htm University of Colorado at Boulder]
3. ↑ Reed Howard, Department of Chemistry and Biochemistry, Montana State University
4. ↑ NIST

http://nebula2.deanza.edu:16080/~garnel/garnel/III._powerpoint_files/chapter%209.pdf

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