The number of moles is directly proportional to the partial pressures,
as can be seen in: PV = nRT.
So:
(7.89 atm B) / (7.89 atm B + 4.70 atm A) = 0.627 (the mole fraction of B)
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The number of moles is directly proportional to the partial pressures,
as can be seen in: PV = nRT.
So:
(7.89 atm B) / (7.89 atm B + 4.70 atm A) = 0.627 (the mole fraction of B)