Answer to Question #233781 in Chemistry for Stu

Question

With the Haber process how many grams of hydrogen would be needed to react with 13g of N2

Answer 1

N₂ + 3 H₂ = 2 NH₃

n (H₂) = 3 x n (N₂)

n = m / M

M (N₂) = 28 g/mol

M (H₂) = 2 g/mol

n (N₂) = 13 / 28 = 0.46 mol

n (H₂) = 3 x n (N₂) = 3 x 0.46 = 1.4 mol

m (H₂) = n x M = 1.4 x 2 = 2.8 g