1.02 g of urea when dissolved in 98.5 g of certain solvent decreases its freezing point by 0.211K. 1.609 g of unknown compound when dissolved in 86 g of the same solvent depresses the freezing point by 0.34 K. Calculate the molar mass of the unknown compound.(molar mass of urea = 60 g/mol )

50 g of solute is dissolved in 0.95 kg of the solvent . The mass percent of the solution in _______.

In an experiment, 18.04 g of mannitol were dissolved in 100 g of water. The vapour pressure of water was lowered by 0.309 mm Hg from 17.535 mm Hg. Calculate the molar mass of mannitol.

The boiling point of benzene is 353.23 K. When 1.809 of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11K. Calculate the molarmass of the solute. K_b for benzene is 2.53 K kg mol^(-1) .

0.440 g of a substance dissolved in 22.2 g of benzene lowered the freezing point of benzene by 0.567 ^(@)C . The molecular mass of the substance is _____ (K_(f) = 5.12 ^(@)C kg mol ^(-1))

0.6 g of a solute is dissolved in 0.1 L of a solvent , which develops an osmotic pressure of 1.23 atm 27^(@)C . The molar mass of the subsance is ___.

Calculate the volume in litres of 49.8 g of HCl gas at STP (Molar mass of HCl =36.5 g mol^-1) .

When 10 of a non-volatile solute is dissolved in 100 g of benzene . It raises boiling point by 1^(@)C then moler mass of the solute is ______. (if K_b = 2.53 ""^(@)C kg // mol )

1.00 g of a non-electrolyte solute dissolved in 50 g of benzene lowered the freezing point of benzene of 0.40K. The freezing point depression constant of benzene is 5.12K kgmol^(-1) . Find the molar mass of the solute .

In a certain electrolysis experiment 0.79 g of Ag was deposited in one cell containing aqueous AgNO_3 solution, while 0.231 g of an unknown metal X was deposited in another cell containing aqueous XCI_2 solution in series with AgNO_3 cell. Calculate the molar mass of X. Molar mass of Ag is 107.9 g mol^(-1) .

An aqueous solution of a certain organic compound hasa density of 1.063gL^(-1) an osmotic pressure of 12.16 atm at 25^@C and a freezing point of -1.03^@C . What is the molar mass of the compound? (Given kg = 1.86 kg mol^(-1) .