Exhibit 6-1 Consider a Mixture of Gases That Includes 0

Exhibit 6-1 Consider a mixture of gases that includes 0.50 g of He, 5.0 g of Ne and 20 g of Ar contained in a 5.0 L vessel at 25 ° C to answer the following question(s) . Molar Mass(He) = 4.0 g/mol, Molar Mass(Ne) = 20 g/mol, and Molar Mass(Ar) = 40 g/mol
-Refer to Exhibit 6-1. What is the mole fraction of Ne in this mixture?

A) 0.14
B) 0.20
C) 0.25
D) 0.28
E) 0.57