An aqueous solution containing urea was found to boil at more than373K, while the same solution freezes below 273K, which are the normal values for pure water. Explain.

An aqueous solution of glucose containing 12g in 100g water was found to boil at 100.34^@ C. calculate K_b for water.

Sodium chloride solution freezes at a lower temperature but boils at a higher temperature than water. Explain.

A solution containing 18 g of non - volatile solute in 200g water freeezes as 272.07 K . Calculate the molecular mass of the solute. ( F.P of water = 273 K_f = 1.86 K kg mol^(-1)

A 5% aqueous solution of mass of cane sugar (mw=342) has freezing point 271K. calculate the freezing point of 5% glucose solution in water, if freezing point of pure water is 273.15K.

The boiling point of an aqueous solution of a nonvolatile solute is 100.15^@C. What is the freezing point of an aqueous solution obtained by diluting the above solution with an equal volume of water? The value of K_b and K_f for water are 0.512^@C and 1.86^@C K molality^-1:

The solution of a non-volatile solute boils at a higher temperature than pure solvent. Explain this with a suitable diagram.

Osmotic pressure of a solution containing 0.1 mole of solute per litre at 273 K is: