2. A solution is prepared by dissolving 27.4 g of sodium bicarbonate in enough water to make 225.0 mL of solution at room temperature. The density of the solution is 1.084 g/mL. Calcu- late the following characteristics for the solution (MW NaHCO= 84.02 g/mole). a. Molality b. Molarity C. Mass percent of solute d. Mole fraction of solute e. Freezing point (K, H,0 = 1.86)