Formation of ammonia
N2 (g) + 3H2 (g) = 2NH3 (g)
Given that nitrogen = 33.0 g
Hydrogen = 11.2 g
Number of moles, N2= amount in g / molar mass
= 33.0 g/ 28.0134 g/mol
=1.18 moles N2
Moles of H2= 11.2 g /2.016 g/ mole
= 5.56 moles
Moles of H2= 1.18 moles N2 * 3/1
= 3.54 moles H2
Moles of N2= 5.56 moles*1/3
=1.85 mole N2
Thus nitrogen is limiting agent
The limiting agent has following properties:
1.18 moles N2 *2 mole NH3/ 1 mole N2
= 2.36 mole NH3
Amount in g = number of mole s* molar mass
= 2.36 mole NH3*17.031 g/mol
= 40.19 g
Hydrogen is present in excess
Moles of excess= total moles – used moles
= 5.56 moles – 3.54 moles
= 2.02 moles
Amount in g = number of moles * molar mass
= 2.02 moles *2.016 g/ moles
= 4.07 g excess hydrogen
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