11.Calculate the mass of ascorbic acid (Vitamin C, C6H8O6) to be dissolved in 75 g of acetic acid to lower its melting point by 1.5 0C. Kf= 3.9 k kg mol–1.
258 Views
12.Calculate the osmotic pressure in pascals exerted by a solution prepared by dissolving 1.0 g of polymer of molar mass 185,000 in 450 mL at 370C.
205 Views
Short Answer Type
13.Suppose a solid solution is formed between two substances, one whose particles are very large and the other whose particles are very small. What kind of solid solution is this likely to be?
14.Amongst the following compunds identify which are insoluble, partially soluble and highly soluble in water? (i) phenol (ii) toluene (iii) formic acid (iv) ethylene glycol (v) chloroform, (vi) pentanol.
15.Two liquids A and B boils at 1450C and 1900C respectively. Which of them has a higher vapour pressure at 800C ?
390 Views
16.Define ‘mole fraction’ of a substance in a solution.
341 Views
17.What is expected value of Van’t Hoff factor for K3 [Fe(CN)6] in dilute solution?
2128 Views
18.State the formula relating pressure of a gas with its mole fraction in a liquid solution in contact with it.
349 Views
Advertisement
19.What would be the value of Van’t Hoff factor for a dilute solution of K2SO4 in water?
484 Views
20.In the determination of molar mass of A+B– using a colligative property, what may be the value of Van’t Hoff factor if the solute is 50% dissociated?
Long Answer Type
Short Answer Type
Switch
