Answer:
4.41 moles of hydrogen
Explanation:
N2 + 3H2 => 2NH3
No of mole = mass/molar mass
No of mole = 50/17 = 2.94
3 moles of H2 gives 2 moles of ammonia
X moles of H2 gives 2.94 moles of ammonia
X mole of H2 = 3 moles of H2 * 2.94 moles of ammonia/ 2 moles of H2
X = 4.41 moles of hydrogen
