1) Convert grams of NH3 into moles
[tex]gHN_3=90gNH_3\cdot\frac{1molNH_3}{17.03H_3}=5.285molNH_3[/tex]
2) Convert moles of NH3 into moles of N2
[tex]molN_2=5.285molNH_3\cdot\frac{1molN_2}{2molNH_3}=2.6425molN_2^{}[/tex]
3) Plug in values in the frame
