1.-What is the vapor pressure that will have a solution prepared with 500 ml of water and 100 grams of sucrose. The vapor pressure of the water at the same temperature of the mixture is 5.3 mmHg.

2.-The atmospheric pressure of the blood is 7.7 atm at 25C determine the m of glucose that we must dissolve in water to obtain 500 ml of solution that is isotonic with the blood.

3.-The freezing temperature of a solution when 8g of a compound with unknown molecular weight is dissolved in 60g of acetic acid is 13.20C. It determines the molecular weight of the compound

4.-1200g of water contains dissolved 4.6g of urea, 12g of NaCl and 3.8g of potassium sulfate. Determine the boiling temperature of the solution assuming total dissociation of all salts present.

Determine the mass of anhydrous calcium chloride that must be dissolved per m3 of water to obtain a solution that freezes at -2C. Assume total electrolytic dissociation and total ideal behavior.