I need help on these questions?

1) A solution made to be 20.2%HCl by mass in water has a density of 1.096g/mL. Calculate the molarity and molality of the HCl in the solution. 2) Calculate the expected boiling point of a solution of 238g of KBr added to 3.00kg of water. For water, Kb is equal to 0.512C/m. 3) As a solution of KBr and water boils, only the water molecules will vaporize. What should happen to the boiling point temperature over time as such a solution boils? 4) As a KBr and water solution begins to freeze, water molecules will tend to become organized into the pure ice crystal structure excluding the K+and Brions which stay mixed with the remaining liquid water. Eventually, the remaining liquid water will be saturated with KBr and solid KBr will precipitate. Thus, the freezing process, if performed slowly, may separate the water from the KBr. What should happen to the freezing point temperature over time during the early stages of the process