Avogadro's number - Revision history

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2018-09-03T22:23:40Z

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	<onlyinclude>'''Avogadro's number''', N<sub>A</sub>, represents the number of [[atom]]s or [[molecule]]s that are in a [[mole]] of a substance. This number is 6.0221415 x 10<sup>23</sup>.<ref ~~name=av~~>~~How stuff works~~, ~~''What is Avogadro's number?'' [Online]~~, ~~Available~~: ~~http://science.howstuffworks.com/avogadros-number~~.~~htm~~</ref> Just like 12 things are in a "dozen", 6.0221415 x 10<sup>23</sup> ~~things~~ are in a "mole".</onlyinclude> An N<sub>A</sub> amount of anything is an extremely large number of it, therefore it is only useful when describing amounts of tiny things like atoms or molecules. This number is extremely important in chemistry, and ~~therefore every year~~ has a special day of its celebration, known as "Mole Day" ~~beginning~~ at 6:02:21 AM on October 23<sup>rd</sup> (6:02:21 10/23).<ref ~~name=av~~/>		[[File:Electron cloud2.gif\|framed\|40px\|right\|Figure 1. A drawing depicting what an atom looks like. N<sub>A</sub> amount of these exist in each mole of any element.<ref>"The electron cloud" internet: http://letstalkaboutscience.wordpress.com/2012/02/16/the-electron-cloud.</ref>]]

			<onlyinclude>'''Avogadro's number''', N<sub>A</sub>, represents the number of [[atom]]s or [[molecule]]s that are in a [[mole]] of a substance. This number is 6.0221415 x 10<sup>23</sup>.<ref>D. Fenna, A Dictionary of weights, measures, and units. Oxford: Oxford University Press, 2004.</ref> Just like 12 things are in a "dozen", 6.0221415 x 10<sup>23</sup> atoms or molecules (see Figure 1) are in a "mole".</onlyinclude> An N<sub>A</sub> amount of anything is an extremely large number of it, therefore it is only useful when describing amounts of tiny things like atoms or molecules.

			This number is extremely important in chemistry and even has a special day of its celebration, known as "Mole Day." It begins at 6:02:21 AM on October 23<sup>rd</sup> (6:02:21 10/23).<ref>How stuff works, ''What is Avogadro's number?'' [Online], Available: http://science.howstuffworks.com/avogadros-number.htm</ref>

			==For Further Reading==
			*[[Atom]]
			*[[Molecule]]
			*[[Element]]
			*[[Mole]]
			*[[Molar mass]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:30:47Z

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J.williams at 16:40, 12 August 2015

2015-08-12T16:40:32Z

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[[Category:Done 2015-06-01]]
<onlyinclude>'''Avogadro's number''', NA, represents the number of [[atom]]s or [[molecule]]s that are in a [[mole]] of a substance. This number is 6.0221415 x 1023.<ref name=av>How stuff works, ''What is Avogadro's number?'' [Online], Available: http://science.howstuffworks.com/avogadros-number.htm</ref> Just like 12 things are in a "dozen", 6.0221415 x 1023 things are in a "mole".</onlyinclude> An NA amount of anything is an extremely large number of it, therefore it is only useful when describing amounts of tiny things like atoms or molecules. This number is extremely important in chemistry, and therefore every year has a special day of its celebration, known as "Mole Day" beginning at 6:02:21 AM on October 23rd (6:02:21 10/23).<ref name=av/>

==References==
{{reflist}}
[[Category:Uploaded]]