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Mole Fraction

7. Gases / Mole Fraction of Gases / Problem 4

Calculate the mole fraction of oxygen in the air. If air contains 18.0 g oxygen gas at 285 K at 1.20 atm, what is the volume of air?

A

χ_O2 = 0.17, V_air = 52.2 L

B

χ_O2 = 0.17, V_air = 11.0 L

C

χ_O2 = 0.21, V_air = 52.2 L

D

χ_O2 = 0.21, V_air = 11.0 L

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