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samueldfhung
06.12.2019 •
Chemistry
Identify the limiting reactant when 1.78 gram of oxygen reacts with 2.16 grams of hydrogen to produce water.
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Ответ:
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.
Ответ:
Have a nice dAy?
Explanation: I thought i knew but nvm sorry