Solutions Test ...

If 510 mg of a liquid on vapourisation in Victor Meyer's apparatus displaces 67.2 cm³ of air at STP, what is the molecular weight of the liquid?

Directions: The following question has four choices out of which ONLY ONE is correct.

Which one of the following aqueous solutions will exhibit the highest boiling point?

van 't Hoff factor of BaCl₂ at 0.01 M concentration is 1.98. What is the percentage of dissociation of BaCl₂ at this concentration?

Directions: Match the statements/expressions in Column – I with the statements/expressions in Column – II and indicate your answer by selecting the appropriate option. Any statement in Column – I can correctly match with one or more statement in Column – II.

Which one of the following pairs of solution can we expect to be isotonic at the same temperature?

Directions: The following question has four choices, out of which ONLY ONE is correct.

If a 6.84% (wt/vol.) solution of cane sugar (mol. wt = 342) is isotonic with 1.52% (wt/vol.) solution of thiocarbamide, then the molecular weight of thiocarbamide is

Ethylene dibromide (C₂H₄Br₂) and 1,2-dibromopropane (C₃H₆Br₂) form a series of ideal solutions over the whole range of compositions and at 85^oC, the vapour pressures of these two pure liquids are 173 torr and 127 torr, respectively. If 10.0 g of ethylene bromide is dissolved in 80.0 g of 1,2-dibromopropane, then which of the following statements is correct?

Match the following:

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

Benzene and toluene form nearly ideal solutions. At 293 K, the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at 293 K in a solution containing 78 g of benzene and 46 g of toluene (in torr) is

The elevation in boiling point of solution of 13.44 g of CuCl₂ in 1 kg of water is (K_b = 0.52 K kg/mol)

A 35.4 ml HCl is required for the neutralisation of a solution containing 0.275 g of sodium hydroxide. The normality of hydrochloric acid is

A solution containing 10g per dm³ urea (molecular mass = 60gmol^–1) is isotonic with a 5% solution of non volatile solute. The molecular mass of this non volatile solute is

An aqueous solution of glucose is 10% in strength. What will be the volume in which 1 g mole of it is dissolved?

A 0.100 m solution of NaClO₃ freezes at - 0.343^oC. At 0.001 m concentration of the same salt, the electrical interferences between the ions no longer exist, because on an average, the ions are too far from each other.

The degree of dissociation of a 0.100 m NaCl solution is