Question

A mixture of 10. 0 g of Ne and 10. 0 g ar have a total pressure of 1. 6 atm. What is the partial pressure of Ne?

Answer 1

1.1 atm

Step-by-step explanation:

moles of neon = 10.0g /20.2g/mole =.495 mole

moles of ar = 10.0 g /39.9 g/mole= .251 mole

the partial pressure of each is determined by their mole fractions of the entire mix

Ne .495 mole / (.495 + .251 mole) * 1.6 atm =

1.1 atm ( to two significant figures)