Chemistry - Liquid Solution Question with Solution | TestHub

${\text{P}}_{\text{T =}}$${\text{P}}_{\text{A}}^{\circ }{\text{X}}_{\text{A}}+{\text{P}}_{\text{B}}^{\circ }{\text{X}}_{\text{B}}$

Mixture solution boil at 1 atm = 760 mm Hg = total pressure of solution.

$760={\text{520X}}_{\text{A}}+1000\left(1-{\text{X}}_{\text{A}}\right)$

$\Rightarrow 760=520{\text{X}}_{\text{A}}+1000-1000{\text{X}}_{\text{A}}\Rightarrow 480{\text{X}}_{\text{A}}=240$​

${\text{X}}_{\text{A}}=0.5,$

mole percentage of$\text{A=50\%}$