Answer:
oxygen is limiting reactant.
Explanation:
Given data:
Mass of oxygen = 1.78 g
Mas of hydrogen = 2.16 g
Limiting reactant = ?
Solution:
Chemical equation:
2H₂ + O₂ → 2H₂O
Number of moles of oxygen:
Number of moles = mass/ molar mass
Number of moles = 1.78 g / 32 g/mol
Number of moles = 0.06 mol
Number of moles of hydrogen:
Number of moles = mass/ molar mass
Number of moles = 2.16 g / 2 g/mol
Number of moles = 1.08 mol
No we will compare the moles of oxygen and hydrogen with water.
O₂ : H₂O
1 : 2
0.06 : 2×0.06 = 0.12 mol
H₂ : H₂O
2 : 2
1.08 : 1.08
Number of moles of water produced by oxygen are less so oxygen will be limiting reactant.
