| calculate mol - please help |
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jruiz3
Junior Member
Joined: 18 Sep 2006
Posts: 8
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 Posted: Tue Sep 19, 2006 8:56 pm Post subject: calculate mol - please help |
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I need some help finding the mol. Can someone please help.
What amount is represented in moles?
4.14 × 1021 molecules of ethanol, C2H5OH
?mol
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adrian
Regular
Joined: 20 Apr 2006
Posts: 44
Location: Bucharest, Romania
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| Posted: Wed Sep 20, 2006 7:48 pm Post subject: moles |
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| 1 mole of anything contains a number of molecules equal to Avogadro's Number, i.e.: 6.023x10^23. Then you just divide.
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Lawsen Lew
Member
Joined: 11 Nov 2006
Posts: 15
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| Posted: Sun Nov 12, 2006 5:35 am Post subject: One mole is Avogadro's number of anything. |
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4.14 * 10^21 molecules of ethanol (1 mol ethanol/6.023 * 10 ^ 23 molecules) = 6.87 * 10^-3 molecule of ethanol.
One mole is Avogadro's number of anything. It is sort of like one dozen is 12 of anything. It is not so hard. You should be able to solve this.
I hope this will be right. I am just a turtle. I am not even a Ph.D.
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