Answer:
nitrogen is limiting reactant
Explanation:
Given data;
Mass of nitrogen = 28.64 g
Mass of hydrogen = 8.42 g
Limiting reactant = ?
Solution:
Chemical equation:
N₂ + 3H₂ → 2NH₃
Number of moles of nitrogen:
Number of moles = mass/ molar mass
Number of moles = 28.64 g / 28 g/mol
Number of moles = 1.02 mol
Number of moles of hydrogen:
Number of moles = mass/ molar mass
Number of moles = 8.42 g / 2 g/mol
Number of moles = 4.21 mol
Now we compare the moles ammonia with hydrogen and nitrogen
N₂ : NH₃
1 : 2
1.02 : 2/1 ×1.02 = 2.04 mol
H₂ : NH₃
3 : 2
4.21 : 2/3×4.21 = 2.8 mol
The number of moles of ammonia produced by nitrogen are less so it will limiting reactant.
