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a mole of methane
a mole -- i can't do super scripts-- but its a measurement-- 10 to power of 10? a way of measuring the mass (it is mass and not volume, right?) of atoms in? (in ? a given volume?)
Ok, so i forget most of the little chemistry i learned-- but why a mole?
meanwhile, i passed one of NY's Mt gargbage's (the are two "closed" ones-- in the Bronx, and in Brooklyn) and the last remaining one is "Fresh Kills" -- and the smell of it is enough to kill you.. needless to say, that was the one i had to drive past!
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oh yay, finally a chance to use what little i remember from my years as a chem major:
You're right about a mole being a measure of atoms; it's actually the amount in grams of a particular substance required in order for the sample to have as many atoms (or basic elements, including ions) as .012kg of the standard C-12 atom (a mole of C-12 weighs 12 grams), which Avogadro discovered is about 6.02 times 10 to the 23rd power. therefore 1 mol = number of atoms in 12g of C-12 atoms = 6.02 x 10 to the 23rd atoms. this grammatical mass constitutes the substance's molecular weight (there's your entymology, helen), which is quite similar to the atomic weights which Mendeleyev used (though in a couple of cases not exactly) to formulate his Periodic Classification of the elements.
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Carpal Tunnel
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bridget96 contributes: 6.02 x 10 to the 23rd atomsThus, Mole Day is celebrated on October 23rd from 6:02 AM to 6:02 PM. YCGI: http://www.moleday.org/
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Carpal Tunnel
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It's been a long time since I had chemistry, but I seem to remember that a "mole" is a gram molecular weight of either an element of a compound. To make a mole of sodium chloride, you would take the number of grams equal to atomic weight of sodium, and react it with number of grams equal to atomic weight of chlorine, so that there would be just the right amounts of each.
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Carpal Tunnel
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In Ozzildiana, all Moles are Kylie.
The idiot also known as Capfka ...
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Pooh-Bah
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<<In Ozzildiana, all Moles are Kylie.>>
Heh?
This is Binky, wishing you a pleasant from the rings of Saturn, signing off.
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