(1)What effect does the presence of a nonvolatile solutehave upon (a) the vapour pressure of a solution, (b) the freezingpoint and (c) the boiling point?
(2) What is the molality of a solution that contains 3.0g urea( molecular weight = 60 amu) in 100g of benzene.
(3) Calculate the freezing point of a solution containing2.50g of benzene in 120g of chloroform.
(4) A solution contaning 2.00g of an unknown substance in25.0g of naphthalene was found to freeze at 75.4 degrees celsious.what is the molar mass of the unknown substance?
(5) How many grams of NaNO3 would you add to 250g of water inorder to prepare a solution that is 0.500 molal in NaNO3?