The partial pressure of oxygen in a sample of air is 452 mm Hg and the total pressure is 780 mm Hg. What is the mole fraction of oxygen?
-
A.
0.203 -
B.
0.579 -
C.
2.030 -
D.
5.790
Correct Answer: Option B
Explanation
Mole fraction = (frac{text{Partial pressure of component}}{text{Total pressure of compound}})
= (frac{452}{780})
= 0.579