Difference between revisions of "Mole (chemistry)"
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(mole (animal) gets the sentence: A '''Mole''' is also a small, underground dwelling mammal of the family ''Talpidae''.) |
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A '''mole''' is the amount of a substance that contains the same number of [[molecule]]s or other [[element]]ary units as the number of atoms in 0.012 kilograms (12 grams) of [[carbon]] 12. Just as a dozen always contains twelve items, a mole always contains 6.022x10<sup>23</sup> items. This value is known as '''Avogadro's number'''. Moles are a convenient unit for discussing chemical reactions, because typical reactions can have huge amounts of atoms, but only a few moles. | A '''mole''' is the amount of a substance that contains the same number of [[molecule]]s or other [[element]]ary units as the number of atoms in 0.012 kilograms (12 grams) of [[carbon]] 12. Just as a dozen always contains twelve items, a mole always contains 6.022x10<sup>23</sup> items. This value is known as '''Avogadro's number'''. Moles are a convenient unit for discussing chemical reactions, because typical reactions can have huge amounts of atoms, but only a few moles. | ||
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== See Also == | == See Also == | ||
| − | * [[ | + | * [[mole (animal)]] |
[[Category:Chemistry]] | [[Category:Chemistry]] | ||
Revision as of 16:20, May 9, 2008
A mole is the amount of a substance that contains the same number of molecules or other elementary units as the number of atoms in 0.012 kilograms (12 grams) of carbon 12. Just as a dozen always contains twelve items, a mole always contains 6.022x1023 items. This value is known as Avogadro's number. Moles are a convenient unit for discussing chemical reactions, because typical reactions can have huge amounts of atoms, but only a few moles.