A solution containing 15g urea (molar mass = 60g/mol) per litre of solution in water is isotonic with the solution of glucose (molar masss `180g//mol`) in water calculate the mass of glucose present in one litre of its solution,.

2 mol ethanol is dissolved in 3 mol water. Calculate the mole fraction of water in the solution.

Calculate molarity of a solution containing 11.7g NaCl in 2.0L solution.

A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mass. Calculate the mass percentage of the resulting solution.

Calculate the molarity of a solution containing 1g of NaOH in 250 mL of water.

A solution of glucose in water in labelled as 10% w//w , what would be the molality and mole fraction of each component in the solution? If the density of solution is 1.2 g mL^-1 , then what shall be the molarity of the solution?

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 6.84g in 100g of water at 298K. Calculate the boiling point of the solution. ( K_b for water, 0.52K mol^-1 )

Calculate the mole fraction of glucose C_6H_12O_6 in a solution containing 20% glucose by mass.

2000 cm^3 of an aqueous solution of a protein contains 1.26 g of the protein. The osmotic pressure of such a solution at 300K is found to be 2.57 … 10^(-3) bar. Calculate the molar mass of the protein.

Heptane and Octane form an ideal solution at 373K the vapour pressure of the pure liquids at this temperature are 105.2 kPa respectively. If the solution contains 25g of heptane and 28.5g octane, calculate Vapour pressure exerted by solution.

100 g of liquid A (molar mass 140 g mol^-1) was dissolved in 1000g of liquid B (molar mass 180 g mol^-1) . The vapour pressure of pure liquid B was found to be 500 torr: Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr.