Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.

Define mole fraction of a solute in a solution.

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

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

Calculate the mass of NaCl in 5 molal solution.

Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toulene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.

Urea [NH_2)_2CO] forms an ideal solution in water. Calculate the vapour pressure of an aqueous solution containing 5% by mass of urea at 298K. At 298K, vapour pressure of water is 23.75 mm Hg.

The vapour pressures fo pure liquids A and B are 450 mm Hg and 700 mm Hg respectively at 350K. If the total vapour pressure of the mixture of the two liquids at 350K is 600mm Hg, Calculate the more fractions of the two components in the solution. Also, calcuate the partial pressures of the two components in the vapour phase.

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

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.

Urea forms an ideal solution in water. Determine the vapour pressure of an aqueous solution containing 10% by mass of urea at 40^@C .[Vapour pressure of water at 40^@C = 55.3mm of Hg ]