Avogadro's number

Avogadro's number

noun Chemistry.
the constant, 6.022 × 10 23 , representing the number of atoms, molecules, or ions in one mole of a substance. Symbol: N Compare gram-atom, gram molecule.
Also called Avogadro constant.


Origin:
1925–30; see Avogadro's law

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American Heritage
Medical Dictionary

Avogadro's number n.
The number of molecules in a mole of a substance, approximately 6.0225 × 1023. Also called Avogadro's constant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
Avogadro's number  
The number of atoms or molecules in a mole of a substance, approximately 6.0225 × 1023. It is based on the number of carbon atoms in 12 grams of carbon 12.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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