The Mole Fraction of He in a Gaseous Solution Prepared

question 28

Multiple Choice

The mole fraction of He in a gaseous solution prepared from 3.0 g of He, 6.5 g of Ar, and 10.0 g of Ne is __________.

• A)0.53
• B)0.75
• C)0.20
• D)0.66
• E)0.86

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