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Qube
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Homework Statement
http://i.minus.com/jbzyIAyMvUrADW.png
Homework Equations
Conservation of mass in a closed system.
The Attempt at a Solution
I'm not sure what the lecture is getting at here. Why is it that the number of moles of NO2 added to twice the number of moles of N2O4 = the total moles? Shouldn't it be the other way around?
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