What is the mole fraction of Ne in a mixture containing 10.1 g of Ne, 79.9 g of Ar, and 83.8 g of Kr?
A)0.40
B)0.25
C)0.20
D)0.14
E)0.058

Question

Quizplus · Accepted Answer

To find the mole fraction, first calculate the moles of each gas: Ne (10.1 g / 20.18 g/mol), Ar (79.9 g / 39.95 g/mol), Kr (83.8 g / 83.80 g/mol). Then, find the total moles and divide the moles of Ne by the total moles. The mole fraction of Ne is approximately 0.14.

What Is the Mole Fraction of Ne in a Mixture