Answer:
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)