Respuesta :
Given a jar holds 2.25 moles of NH₃, 3.75 moles of NO, and 12.5 moles of O₂, then the mole fraction of oxygen is 0.675.
What is Mole fraction ?
Mole fraction is the ratio of number of moles of particular component in a mixture divided by the total amount of all constitute in a mixture.
Mole fraction (Xₐ) = [tex]\frac{\text{Moles of a}}{\text{total mole}}[/tex]
Given,
Moles of NH₃ = 2.25
Moles of NO = 3.75
Moles of O₂ = 12.5
Now put the values in above formula we get
Mole fraction of oxygen = [tex]\frac{\text{Moles of}\ O_2}{\text{Moles of}\ NH_3 + \text{Moles of NO} + \text{Moles of}\ O_2}[/tex]
= [tex]\frac{12.5}{2.25 + 3.75 + 12.5}[/tex]
= [tex]\frac{12.5}{18.5}[/tex]
= 0.675
Thus, from above conclusion we can say that the mole fraction of oxygen is 0.675.
Learn more about the Mole fraction here: https://brainly.com/question/14498215
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