Vapour pressure of pure water at 25 C is 80 torr and that of

In a certain titration experiment a student used 28 96 mL of an unknown NaOH solution to completely neutralize 25 00 mL of 0 1500 M HCl solution What is the molarity of the NaOH solution 1 0 1295 M O O 2 0 1738 M 3 7 723 M

At 300 K 36 g of glucose present in a litre of its solution has an osmotic pressure of 4 98 bar If the osmotic pressure of the solution is 1 52 bar at the same temperature what would be its concentration Report your answer upto two decimal places

0 x 10 10 will be 0 233 2 IL 4 430 L IE0061 in saturated solution of 10 mol L At 20 C Ag CrO is 3 0 1 M NaBr 27 IE0072 61 In which of the following the solution of AgSCN 12 3 20 will be unsaturated 20 4 0 1 M AgNO 1 Ag SCN1K 2 Aglx SCN K 3 Agl x SCN1 K 4 Ag SCN K IE0073

41g mol 27 Mass of non volatile solute molar mass 40g mol which should be dissolved in 114g octane to reduce its vapour pressure to 80 2 Points 10g 100g 20g 90g 300g of 25 solution and 400g of 40 solution by mass the

Please explain the calculation part of the question by con idering 1 Sulphur as the fixed element 2 Oxygen as the fixed element 14 Sulphur and oxygen are known to form two compounds The sulphur content in one of these is 51 while in the other is 41 Show that this data is in agreement with the law of multiple proportions Hint Ratio of oxygen in oxides of sulphur is 2 3

3 150 mm of Hg 4 375 mm of Hg 3 An equimolar solution of two volatile liquids A M 150 g mol and B M 200 g mol 1 has vapour pressure 500 torr If vapour pressure of pure B is 400 torr the mol fraction of component A in vapour phase is 1 0 5 3 0 3 2 0 6 4 0 4

26 An aqueous solution of 2 non volatile solute exerts a pressure of 1 004bar at the normal boiling point of the solvent The molar mass of the solute given atmospheric pressure 1 013bar 2 Points 80g mol 61g mol 52g mol 41g mol

elevation in boiling point 10 A liquid in liquid solution is distilled the distillate is found to have same composition as the original solution it is 1 Point isotonic solution azeotropic mixture ideal solution none of the above

elevation constant 18 The molar mass of a non volatile solute whose 2 aqueous solution exerts a osmotic pressure of 1 004 bar at 273 K will be NCERT Pg 55 1 625 5 g mol 3 226 4 g mol vial 2 700 3 g mol 4 445 9 g mol

At 25 C the molar conductance of 0 007 M hydrofluoric acid is 150 mho cm mol and o 500 mho cm mol The value of the dissociation constant of the acid at the given concentration at 25 C is A C 7 104 9 10 3 B D WB JEEM 2014 7 10 5 9 104