What weight of glucose must be dissolved in 100 g of water to lower the vapour pressure by 0.20 mm Hg?
(Assume dilute solution is being formed)
Given : Vapour pressure of pure water is 54.2 mm Hg at room temperature. Molar mass of glucose is 180 g mol-1 .
(1) 4.69 g
(2) 3.59 g
(3) 2.59 g
(4) 3.69 g
