2.12 Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving of polymer of molar mass in of water at
2.11 . Calculate the mass of ascorbic acid (Vitamin C, ) to be dissolved in of acetic acid to lower its melting point by .
2.10 Boiling point of water at is . How much sucrose is to be added to of water such that it boils at
2.9 Vapour pressure of pure water at is of urea is dissolved in of water. Calculate the vapour pressure of water for this solution and its relative lowering.
2.8 The vapour pressure of pure liquids A and B are and respectively, at . Find out the composition of the liquid mixture if total vapour pressure is . Also find the composition of the vapour phase.
2.7 Henry’s law constant for in water is at Calculate the quantity of in of soda water when packed under pressure at
2.6 a toxic gas with rotten egg-like smell, is used for the qualitative analysis. If the solubility of in water at STP is calculate Henry’s law constant.
(b) molarity and
(c) mole fraction
of KI if the density of (mass/mass) aqueous KI is .
2.1 Calculate the mass percentage of benzene and carbon tetrachloride if of benzene is dissolved in of carbon tetrachloride.