Question

In the reaction of N2 and H2 to produce NH3, how many moles of N2 will produce 25.9 moles NH3?

Answer 1

N2 + 3H2 ==?> 2NH3
So you want 25.9 moles NH3.
Convert 25.9 moles NH3 to moles N2.
25.9 mol NH3 x (1 mol N2/2 moles NH3) = 25.9 x 1/2 = ?