22. A gas mixture of Xe, Ne, and Ar has a total pressure of 12.20 atm. What is the mole fractionof Xe if the partial pressures of Ne and Ar

are 2.10 and 4.50 atm, respectively? A) 0.848 B) 0.459 С) 5.60 D) 2.18 E) 1.18