The elevation of boiling poin is 0.70K when 12.5gm of a non electrolyte gets dissolved in 175 gm of water. Cacluate mole mass of the substance `K_b` =52K Kg `mol^(-1)`

A solution of 2.44xx10^-3 kg of a nonelectrolyte solute dissolved in 0.075 kg of water boiled at 100.413^@C . Calculate the molecular mass of the solute. K_b for water = 0.52 K kg mol^-1

Calculate the elevation of boiling point of water when 0.6 gm urea is dissolved in 250 ml water given [ K_b 0.52 k.kg mol^(-1) ]

A solution contains 5.6 gm of glucose in 1000 gm of water. Calculate the boiling point of the solution. ( k_b for water = 0.52 K kg mol^-1 )

34.2 gm Sucrose (Molecular wt 342) is dissolved in 1000 gm of water. Find the freezing-point of the solution kf = 1.86 K Kg mol^-1

The elevation in boiling point, when 13.44 g.of freshly prepared CuCl_2 , are added to 1 kg of water is [some useful data, K_b (H_2O) = 0.52 kg K mol^-1 and M.W of CuCl_2 = 134.4 g]

The vapour pressure of acetone at 20^@C is 185 torr. When 1.2 g of a non-volatile solute was dissolved in 100 g of acetone at 20^@C its vapour pressure was 183 torr. The mass (g mol^(-1)) of the substance is.

One molal solution of a carboxylic acid in benzene shows the elevation of boiling point of 1.518 K. The degree of association for dimerization of the acid in benzene is (K_b for benzene = 2.53 K kg mol^-1) :

The boiling point of a solution containing 1.5 g of dichlorobenzene in 100 g of benzene was higher by 0.268^@C . Calculate the molar mass of dichlorobenzene. K_b forbenzene = 2.42 K kg mol^-1

For a dilute solution containing 2.5 g of a non- volatile non-electrolyte solute in 100 g of water, the elevation in boiling point at 1 atm pressure is 2^@C Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (take k_b = 0.76 K kg mol^(-1)) .

The elevation in boiling point of a solution of 13.44 g of CuCl_2 in 1 Kg of water using the following information will be: (Molecular weight of CuCl_2=134.4 and K_b=0.52 K molal^-1)