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stricklandashley43
25.05.2021 •
Chemistry
Can someone please help
Solved
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Ответ:
B. 2 moles of water
Explanation:
The reaction expression is given as shown below:
2H₂ + O₂ → 2H₂O
Number of moles of Hydrogen gas = 2 moles
Number of moles of oxygen gas = 2.5moles
Unknown:
Number of moles of water produced = ?
Solution:
To solve this problem, we need to find the limiting reactant because this reactant will determine the extent of the reaction.
From the balanced reaction expression:
2 mole of hydrogen gas will need to combine with 1 mole of oxygen gas
But we have been given 2.5 moles of oxygen gas
Oxygen gas is in excess and hydrogen gas is the limiting reactant.
So;
2 moles of hydrogen gas will produce 2 moles of water