Calculate the osmotic pressure at 273K of a 5% solution of compound A. (molecular mass-60) (Given R=`0.0821 L atm K^-1mol^-1`)

Calculate the osmotic pressure exerted by solution prepared by dissolving 1.5 g of a polymer of molar mass 185000 in 500 ml of water at 37^@C . [R=0.0821 L atm K^-1 mol^-1]

3.0 g of non-volatile solute when dissolve in 1 litre water, shows an osmotic pressure of 2 atmosphere at 300 K. Calculate the molar mass of the solute. (R = 0.0821 litre atm K^(-1)"mol"^(-1) ).

Calculate the osmotic pressure of a solution obtained by mixing 100 mL of 1.5 percent solution of urea (mol.mass of 60) and 100 mL of 3.42 percent solution of cane sugar (mol. Mass=342) at 20^@C . (R=0.82 litre atm K^-1 mol^-1)

The osmotic pressure of 0.2 molar solution of urea at 27^@C (R=0.082 litre atm "mol"^(-1) K^(-1)) is

A solution containing 15g of urea (molar mass= 60gmol^-1 ) per litre of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass= 180gmol^-1 ) in water. Calculate the mass of glucose presenty in one litre of its solution.

Calculate the freezing point of an aqueous solution of a non electrolyte having an osmotic pressure at 2 atm at 300K (K_f=1.86Cm^-1, R=0.082 L atm K^-1 mol^-1)

Calculate the molar concentration of urea solution if it exerts an osmotic pressure of 2.45 atmosphere at 300K . (R=0.0821L atm mol^-1 K^-1 )

A balloon of diameter 21 meter weight 100 kg. Calculate its pay-load, if it is filled with He at 1.0 atm and 27^(@)C . Density of air is 1.2 kg m^(-3) . (Given : R=0.082 L atm K^(-1)mol^(-1) )