The Mole Fraction of He in a Gaseous Solution Prepared

question 114

Multiple Choice

The mole fraction of He in a gaseous solution prepared from 1.0 g of He,6.5 g of Ar,and 10.0 g of Ne is ________.

• A)0.28
• B)0.25
• C)0.20
• D)0.66
• E)0.86

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