Posted by Anonymous on Wednesday, June 30, 2010 at 11:39am.
First write the balanced reaction.
3H2 + N2 => 2 NH3
If the reaction were stoichiometric, there would be three times as many moles of H2 as N2. That also means three times the volume.
In your case, there are more than 3 times as many moles of H2 as N2.
It should be obvious which reactant is in excess, and by how much.
1.0 m^3 of NH3 will be formed, when the products are brought to the pressure and temperature of the reactants. If you know P and T, you can also state the number of moles formed. There are 22.4 liters per mole at STP.
Thank you. :)
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