Question

A mixture of argon and hydrogen gases contains argon at a partial pressure of 241 mm Hg and hydrogen at a partial pressure of 534 mm Hg. What is the mole fraction of each gas in the mixture?

Answer 1

A mixture of argon and hydrogen gases contains argon at a partial pressure of 241 mm Hg and hydrogen at a partial pressure of 534 mm Hg. What is the mole fraction of each gas in the mixture?
pAr = 241 mm
pH2 = 534 mm
ptotal = 241 + 534 = ?
XAr = pAr/ptotal
XH2 = pH2/ptotal

Answer 2

p total is 775

Answer 3

775 is correct for Ptotal. That will let you calculate X for Ar and X for H2.
XAr = 241/775 = ?
XH2 = 534/775 = ?