kidzsearch.com > wiki Explore:images videos games
|Value of NA in various units|
The Avogadro constant (symbols: L, NA) is the number of particles (usually atoms or molecules) in one mole of a given substance. Its value is equal to 6.02214129(27)×1023 mol−1. The constant was named after the Italian scientist Amedeo Avogadro.
An old term closely related to the Avogadro constant is Avogadro's number. Avogadro's number is the number of atoms in 12 grams of the carbon isotope carbon-12. Avogadro's number is a dimensionless quantity and has the numerical value of the Avogadro constant given in base units.
- Mohr, Peter J.; Taylor, Barry N.; Newell, David B. (2008). "CODATA Recommended Values of the Fundamental Physical Constants: 2006". Rev. Mod. Phys. 80: 633–730. . http://physics.nist.gov/cuu/Constants/codata.pdf. Direct link to value.
- Salters Advanced Chemistry: Revise Chemistry For Salters AS (Second ed.). Heinemann. 2008. p. 2. .
- "Avogadro constant". National Institute of Standards and Technology. http://physics.nist.gov/cgi-bin/cuu/Value?na. Retrieved 2013-11-07.