TS EAMCET 03 May 2019 Shift 2 Solved Paper

The pressure difference is given as,
∆p=23.8−23.324=0.476mm‌ of ‌Hg
The expression for dilute solution is given as,
‌

∆p

p∘

=‌

wB

MB

×‌

MA

wA

Here, the molecular weight and actual weight of the solvent is
MA and wA and the molecular weight and actual weight of the solute is MB and wB
Substitute the value in above expression we get,
‌

0.476mm

23.8mm

=‌

wB

180

×‌

18

100

wB=20