A Mixture of He,Ne and Ar Has a Pressure of 7.85

question 13

Multiple Choice

A mixture of He,Ne and Ar has a pressure of 7.85 atm.If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23,what is the pressure of He?

• A)4.2 atm
• B)3.7 atm
• C)1.8 atm
• D)5.5 atm
• E)2.4 atm

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