If a hydrated crystal has vapour pressure greater than that of water vapour in the atmosphere, the crystal is __________________

Formation of a solution from two components can be considered as

1. Pure solve → separated solvent molecules, ΔH₃
2. ICl₃ solvent → separated solute molecules, ΔH₂
3. Separated solvent and solute molecules → solution, ΔH₃

Solution so formed will be ideal, if

1.00g of a non- electrolyte solute (molar mass 250g mol^-1) was dissolved in 51.2 g of benzene. If the freezing point depression constant, k_f of benzene is 5.12 K kg mol^-1, the freezing point of benzene will be lowered by.

1M and 2.5 L NaOH solution is mixed with another 0.5 and 3L, NaOH solution. Then, find out the molarity of resultant solution.

During osmosis, flow of water through a semi permeable membrane is

A solution of urea (mol.mass 56 g mol-1) boils at 100.18oC at the atmosphere pressure. If kf and kb for water are 1.86 and 0.51 2 K kg mol^-1 respectively, the above solution will freeze at.

 A solution has 1 : 4 mole ratio of pentane to hexane. The vapour pressure of the pure hydrocarbons at 20^oC are 440 mm of Hg for pentane and  120 mm of Hg for hexane. The mole fraction of pentane in the vapour phase would be

The vapour pressure, at a given temperature, of an ideal solution containing 0.2 mole of a non volatile solute and 0.8 mole of solvent is 60 mm of Hg. The vapour pressure of the pure solvent at the same temperature is.

If 0.1 M solution of glucose and 0.1 M solution of urea are placed on two sides of the semipermeable membrane to equal heights, then it will be correct to say that.

The van't Hoff factor for an aqueous solution of Al₂(SO₄)₃ is___________.