Calculate the mass of non-volatile solute `(Molecular mass 40g mol^-1)` which should be dissolved in 114g octane to reduce its vapour pressure to 80%.

Calculate the mass of a non-volatile solute of molar mass 40 which should be dissolved in 114g octane to reduce its vapour pressure to 60%

Calculate the mass of a non-volatile solute of molar mass 40gmol^(-1) which when disolved in 114g octane to reduce it vapour presure to 80%.

Calculate the mass of compound ( molar mass = 256 g mol^(-1) ) to be dissolved in 75 g of benzene to lower its freezing point by 0.48 K (Kf= 5.12 K kg mol^(-1)) .

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.

What mass of NaCl (molar mass= 58.5g mol^-1) must be dissolved in 65g of water to lower the freezing point by 7.5^@C ? The freezing point depression constant, K_f for water is 1.86 K kg mol^-1 . Assume vant Hoff factor for NaCl is 1.87.

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 6.84g in 100g of water at 298K. Calculate the osmotic pressure of the solution at 298K (Density of water at 298K + 1 g mL^-1 ).

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 0.84g in100 g of water at 298 K. Calcuate the osmotic pressure of the solution at 298 K (Density of water at 298 K = 1 gmol^-1)

Calculate the mass percentage of benzene (C_6H_6) and carbon tetrachloride (CCl_4) if 22g of benzene is dissolved in 122g of carbon tetrachloride.

Calculate the mass of ascorbic acid (Vitamin C, C_6H_8O_6) to be dissolved in 75g of acetic acid to lower its melting point by 1.5^@C . K_f = 3.9 K kg mol^-1

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 6.84g in 100g of water at 298K. Calculate the freezing point of the solution ( K_f for water, 1.86K Kgmol^-1 ).