Avogadro constant - Revision history

Carl McBride: Changed references to Cite format

2011-07-27T09:27:34Z

Changed references to Cite format

← Older revision		Revision as of 11:27, 27 July 2011
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	The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by ~~(Ref~~. 1):		The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by <ref>[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]</ref>:

	:N<sub>A</sub> = 6.02214129 x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.02214129 x 10<sup>23</sup> mol<sup>-1</sup>
	==History==		==History==
	The first person to try elucidate an analogous value was [[ Johann Josef Loschmidt]] in 1866 ~~(Ref~~. 2).		The first person to try elucidate an analogous value was [[ Johann Josef Loschmidt]] in 1866 <ref>J. Loschmidt "Zur Grösse der Luftmolecüle", Sitzungsberichte der kaiserlichen Akademie der Wissenschaften zu Wien: Math-Naturwiss., Klasse 2, '''52''' pp. 395–413 (1866) </ref>.
	However, this constant was named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (~~Ref~~. 3).		However, this constant was named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 <ref>Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de chimie et de physique '''XVIII''' (8e série) pp. 5-113 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]</ref>.
	==~~Interesting reading~~==		==References==
			<references/>
			;Related reading
	*[http://dx.doi.org/10.1038/179145a0 F. A. Paneth "Avogadro's Number and Loschmidt's Number", Nature '''179''' p. 145 (1957)]		*[http://dx.doi.org/10.1038/179145a0 F. A. Paneth "Avogadro's Number and Loschmidt's Number", Nature '''179''' p. 145 (1957)]
			*[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]
	*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]		*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]
	~~==References==~~		*[http://dx.doi.org/10.1038/467892a Geoff Brumfiel "Elemental shift for kilo", Nature News '''467''' p. 892 (2010)]
	~~#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]~~
	~~#J. Loschmidt "Zur Grösse der Luftmolecüle", Sitzungsberichte der kaiserlichen Akademie der Wissenschaften zu Wien: Math-Naturwiss., Klasse 2, '''52''' pp. 395–413 (1866)~~
	#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de chimie et de physique '''XVIII''' (8e série) pp. 5-113 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]
	#[http://dx.doi.org/10.~~1007~~/~~BF02743188 G. Mana and G. Zosi~~ "~~The Avogadro constant~~", ~~La Rivista del Nuovo Cimento~~ '''18''' pp. ~~1-23~~ (~~1995~~)]
	[[Category: Physical constants]]		[[Category: Physical constants]]

Carl McBride: Updated with 2010 values

2011-07-11T14:51:26Z

Updated with 2010 values

← Older revision		Revision as of 16:51, 11 July 2011
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	The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by (Ref. 1):		The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by (Ref. 1):

	:N<sub>A</sub> = 6.~~02214179(30)~~ x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.02214129 x 10<sup>23</sup> mol<sup>-1</sup>
	==History==		==History==
	The first person to try elucidate an analogous value was [[ Johann Josef Loschmidt]] in 1866 (Ref. 2).		The first person to try elucidate an analogous value was [[ Johann Josef Loschmidt]] in 1866 (Ref. 2).

Carl McBride: Added some references.

2008-07-30T14:24:52Z

Added some references.

← Older revision		Revision as of 16:24, 30 July 2008
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	The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by:		The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by (Ref. 1):

	:N<sub>A</sub> = 6.02214179(30) x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.02214179(30) x 10<sup>23</sup> mol<sup>-1</sup>
			==History==
	~~This~~ constant was named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).		The first person to try elucidate an analogous value was [[ Johann Josef Loschmidt]] in 1866 (Ref. 2).
			However, this constant was named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).
	==Interesting reading==		==Interesting reading==
			*[http://dx.doi.org/10.1038/179145a0 F. A. Paneth "Avogadro's Number and Loschmidt's Number", Nature '''179''' p. 145 (1957)]
	*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]		*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]
	==References==		==References==
	#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]		#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]
			#J. Loschmidt "Zur Grösse der Luftmolecüle", Sitzungsberichte der kaiserlichen Akademie der Wissenschaften zu Wien: Math-Naturwiss., Klasse 2, '''52''' pp. 395–413 (1866)
			#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de chimie et de physique '''XVIII''' (8e série) pp. 5-113 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]
	#[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]		#[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]
	#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de chimie et de physique '''XVIII''' (8e série) pp. 5-113 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]
	[[Category: Physical constants]]		[[Category: Physical constants]]

Carl McBride at 16:11, 15 February 2008

2008-02-15T16:11:57Z

← Older revision		Revision as of 18:11, 15 February 2008
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	:N<sub>A</sub> = 6.02214179(30) x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.02214179(30) x 10<sup>23</sup> mol<sup>-1</sup>

	~~It is~~ named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).		This constant was named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).
	==Interesting reading==		==Interesting reading==
	*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]		*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]

Carl McBride at 16:10, 15 February 2008

2008-02-15T16:10:18Z

← Older revision		Revision as of 18:10, 15 February 2008
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	It is named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).		It is named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).
			==Interesting reading==
			*[http://dx.doi.org/10.1119/1.2188962 Ronald Newburgh, Joseph Peidle and Wolfgang Rueckner "Einstein, Perrin, and the reality of atoms: 1905 revisited", American Journal of Physics '''74''' pp. 478-481 (2006)]
	==References==		==References==
	#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]		#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]

Carl McBride: /* References */

2008-02-15T16:05:50Z

References

← Older revision		Revision as of 18:05, 15 February 2008
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	#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]		#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]
	#[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]		#[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]
	#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de ~~Chimie~~ et de ~~Physique~~ '''19''' (8e série) pp. 5-~~104~~ (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]		#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de chimie et de physique '''XVIII''' (8e série) pp. 5-113 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]
	[[Category: Physical constants]]		[[Category: Physical constants]]

Carl McBride at 16:01, 15 February 2008

2008-02-15T16:01:41Z

← Older revision		Revision as of 18:01, 15 February 2008
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	The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by:		The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by:

	:N<sub>A</sub> = 6.~~0221415~~(10) x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.02214179(30) x 10<sup>23</sup> mol<sup>-1</sup>

	It is named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).		It is named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).

Carl McBride at 15:55, 15 February 2008

2008-02-15T15:55:23Z

← Older revision		Revision as of 17:55, 15 February 2008
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	:N<sub>A</sub> = 6.0221415(10) x 10<sup>23</sup> mol<sup>-1</sup>		:N<sub>A</sub> = 6.0221415(10) x 10<sup>23</sup> mol<sup>-1</sup>

			It is named after Lorenzo Romano Amedeo Carlo Avogadro by Jean Perrin in 1909 (Ref. 3).
	==References==		==References==
	#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]		#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]
			#[http://dx.doi.org/10.1007/BF02743188 G. Mana and G. Zosi "The Avogadro constant", La Rivista del Nuovo Cimento '''18''' pp. 1-23 (1995)]
			#Jean Perrin "Mouvement brownien et réalité moléculaire", Annales de Chimie et de Physique '''19''' (8e série) pp. 5-104 (1909) [http://gallica.bnf.fr/ark:/12148/bpt6k349481/ Page images on Gallica]
	[[Category: Physical constants]]		[[Category: Physical constants]]

Nice and Tidy at 16:42, 6 February 2008

2008-02-06T16:42:40Z

← Older revision		Revision as of 18:42, 6 February 2008
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	The '''Avogadro constant''' (<math> N_A</math>) .		The '''Avogadro constant''' (<math> N_A</math>) in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] is given by:

	~~Its value (in [http~~:/~~/physics.nist.gov/cuu/Units/ Le Système international d'unités] 2002 [http://www.codata.org/ CODATA] value) is:~~		:N<sub>A</sub> = 6.0221415(10) x 10<sup>23</sup> mol<sup>-1</sup>
			==References==
	~~:<math~~> ~~\left. N_A~~ = 6.~~022 1415~~(10) ~~\times~~ 10^{23} mol^{-1~~} \right.~~</~~math~~>		#[http://physics.nist.gov/cgi-bin/cuu/Value?na#mid CODATA]
	[[Category: Physical constants]]		[[Category: Physical constants]]

Carl McBride at 14:03, 11 June 2007

2007-06-11T14:03:53Z

← Older revision		Revision as of 16:03, 11 June 2007
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	The '''Avogadro constant''' (<math> N_A</math>) .		The '''Avogadro constant''' (<math> N_A</math>) .

	Its value (in [~~[SI~~]~~] units,~~ 2002 [http://www.codata.org/ CODATA] value) is:		Its value (in [http://physics.nist.gov/cuu/Units/ Le Système international d'unités] 2002 [http://www.codata.org/ CODATA] value) is:

	:<math> \left. N_A = 6.022 1415(10) \times 10^{23} mol^{-1} \right.</math>		:<math> \left. N_A = 6.022 1415(10) \times 10^{23} mol^{-1} \right.</math>
	[[Category: Physical constants]]		[[Category: Physical constants]]