134) Benzene and toluene form nearly ideal solutions. At 20^oC, the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at 20^oC for a solution containing 78 gm of benzene and 46 gm of toluene in torr is:

135) Two solutions of a substance are mixed in the following manner: 480 mL of 1.5M of solution 1 + 520 mL of 1.2M of solution 2. What is the molarity of the final mixture?

136) 18 gm of glucose is added to 178.2 gm of water. The vapour pressure of water for this aqueous solution at 100^oC is:

137) Which of the following liquid pairs shows a positive deviation from Raoult′s law?

138) An aqueous solution of sucrose, containing 34.2 gm⁄L, has an osmotic pressure of 2.38 atm at 17^oC. For an aqueous solution of glucose to be isotonic with this solution, it would have: