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I'm not understanding stoichiometry...

If 150 g of water were produced, how many moles of oxygen must have reacted?

 Feb 16, 2015

Best Answer 

 #2
avatar+33661 
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Molecular weight of water is 18, so there are 150/18 moles of H2O.  As there is one atom of Oxygen for each molecule of water there are 150/18 moles of Oxygen.

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 Feb 16, 2015
 #1
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This is actually a math question because h2o is water so just count the molecules of oxygen in 150 grams of water. (Don't be afraid to tell me I'm wrong b/c I've never taken chemistry.

 Feb 16, 2015
 #2
avatar+33661 
+13
Best Answer

Molecular weight of water is 18, so there are 150/18 moles of H2O.  As there is one atom of Oxygen for each molecule of water there are 150/18 moles of Oxygen.

.

Alan Feb 16, 2015
 #3
avatar+709 
0

Very cool, but I doubt I will be needing it anytime soon.

 Feb 16, 2015

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