A Gas Mixture Has Mole Fractions of 0

question 20

Multiple Choice

A gas mixture has mole fractions of 0.24 oxygen and 0.76 nitrogen.If the total pressure of the gases is 1.44 atm at 325 K,what is the concentration,in molarity,of oxygen? (R = 0.0821 L.atm/mol.K)

• A) 0.013 M
• B) 0.017M
• C) 0.041 M
• D) 0.54 M
• E) 0.069 M

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