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Need helpppppp hurry pls, i just really need help

Need helpppppp hurry pls, i just really need help-example-1

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Answer:

6.8 mole of O₂

Step-by-step explanation:

Given expression:

2H₂ + O₂ → 2H₂O

Number of moles of H₂ = 13.6moles

Unknown:

Number of moles of O₂ = ?

Solution:

In the given problem, we are to find the number of moles of oxygen gas that will use up 13.6mole of hydrogen gas;

From the reaction equation;

2 mole of H₂ will completely react with 1 mole of O₂

13.6 moles of H₂ will completely be used up by
(13.6)/(2) mole of O₂

= 6.8 mole of O₂

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