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Avogadro's number

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Avogadro's number

 
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–noun Chemistry.
the constant, 6.02 × 1023, representing the number of atoms in a gram atom or the number of molecules in a gram molecule. Symbol: N
Also called Avogadro constant.

Origin:
1925–30; see Avogadro's law
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Avogadro's number also Avogadro number  
n.  The number of molecules in a mole of a substance, approximately 6.0225 × 1023.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: Avogadro's number
Variant: or Avogadro number /-"gäd-(")rO-, -"gad-/
Function: noun
: the number 6.023 ×1023indicating the number of atoms or molecules in a mole of any substance —compare AVOGADRO'S LAW
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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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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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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