[myalpineshines]

Im just going into AP chem in high school so im hoping some of you guys will find this easy and be able to tell me if I'm doing it right! The question is as follows:
    "What volume of nitrogen gas is needed to react completely with 150.0 L of hydrogen in the production of ammonia?"  
 First i got my equation which is N2 + 3H2 yields 2NH3
 Second i used the gass laws at STP to find the moles in 150.0 L of H
 Then i used the mole ratio in my equation to convert the moles of H into moles of N
 Then i used the gass laws at STP to convert the moles of N into Liters of N
    My answer came out to be 50.00 L N2.  If anyone can verify the answer or even tell me if i have the right procedure, it would be great!

[Borek]

Both answer and procedure are OK. However, you overdid

Note that if the case of gas reactants you may use volumes instead of moles - if one mole of gas reacts with one mole of other gas, it means one volume reacts with one volume.

In this case it means that 1 volume of nitrogen reacts with 3 volumes of hydrogen.

Rest is a breeze...