1. A solution is prepared by dissolving 28.4g of glucose (C6H12O6) in 350g of water. The final volume of the solution is 382mL . For this solution, calculate each of the following: molarity, molality, percent by mass, mole fraction, mole percent.
2. What is the freezing point of an aqueous solution that boils at 105.6∘C?
3.Calculate the vapor pressure of a solution containing 29.0g of glycerin (C3H8O3) in 138mL of water at 30.0 ∘C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e., it is not ionic) and use a density of 1.00 g/mL for the water.
4. What is the boiling point of an aqueous solution that has a vapor pressure of 20.0torr at 25 ∘C?
(P∘H2O=23.78 torr; Kb= 0.512 ∘C/m).
5. A 100.0-mL aqueous sodium chloride solution is 13.7% NaCl by mass and has a density of 1.12 g/mL. What mass of solute would you add to make the boiling point of the solution 104.0∘C? (Use i = 1.8 for NaCl)
Hi! Please check I have corrected the... View the full answer