can someone please please please help me with this asap?

Question

N2 + 3 H2 → 2 NH3

1. Nitrogen reacts with hydrogen to form ammonia according to the balanced chemical equation above. For each of the following pairs of reactants, identify the limiting reactant and determine the theoretical yield of NH3 (in moles).

 5.00 g N2, 2.00 g H2

Answer 1

Hello Katie. To solve this problem, we will use three-step stoichiometry. However, we must go through the three steps twice, first starting with the mass of N₂, and then beginning with the mass of H₂.

(5.00g N₂) X (1 mol N₂ / 28.02g) X (2 mol NH₃ / 1 mol N₂) x (17.031g / 1 mol NH₃) = 6.08g NH₃

(2.00g H₂) X (1 mol H₂ / 2.016g) X (2 mol NH₃ / 3 mol H₂) X (17.031g / 1 mol NH₃) = 11.3g NH₃

Of the two possible answers, we select the smaller...6.08g