Answer to Question #268857 in General Chemistry for larrkyy

Question

using the chemical equation: 3H2+N2->2NH3 determine the mole of H2 needed to form 124 grams of NH3

Answer 1

Molar mass of NH₃ is 17.031 g/mol

Moles of $NH_3=\frac{124}{17.031}=7.28moles$

Moles of $H_2=\frac{3}{2}×7.28=10.92moles$