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Find the total number of atoms in 2.0 moles of calcium nitrate?.. HELP PLEASE

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CJHski
Posts: 2384 - Karma: 126
some chemistry help please.........and i know someone just made a thread about chem. help but it dosent help me.......

alright so for this problem ......Find the total number of atoms in 2.0 moles of calcium nitrate?...... i got 272.06 atoms in 2 moles of Ca(NO3)2........why is this wrong?
Jan 4 2007 11:40PM
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pommes_vertes.
Posts: 1260 - Karma: 10
its 1.0836 * 10^25.

there are 9 atoms per calcium nitrate molecule (1 calcium, 2 nitrogen, 6 oxygen). each mole has 6.02 * 10^23 molecules. two moles. multiply them.
Jan 4 2007 11:47PM
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wAy2sTeEzY4u
Posts: 5449 - Karma: 20
use the chemistry thread!
Jan 4 2007 11:49PM
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J_Walk
Posts: 1076 - Karma: 28
lol i never knew that ns had so many fine and dandy uses
Jan 5 2007 12:44AM
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garrett.
Posts: 9304 - Karma: 3,670
wree lota msrate ahtn uyo htkni
Jan 5 2007 12:53AM
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BurgRider
Posts: 1597 - Karma: 17
276 is a little low
Jan 5 2007 12:55AM
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J_Walk
Posts: 1076 - Karma: 28

I ese, deendi

Jan 5 2007 12:59AM
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poor@$$skibum
Posts: 1625 - Karma: 40
hath asw het sthrade vie gtuohth otayd.
Jan 5 2007 1:01AM
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J_Walk
Posts: 1076 - Karma: 28
that one lost me for sure.. what the hell can "vie" be?
Jan 5 2007 1:03AM
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