Assignment #70 - 35. For each of the following solutions, the mass of solute is given, followed by the total volume of solution Review Chapter 15, Sections 3 and 4 prepared. Calculate the molarity. Q&P #19, 21, 35(a&b). 45(a&b). 47 (pgs 475- a. 321 g of CaCl,; 1.45 L 476) b. 4.21 mg of NaCl; 1.65 ml 19. A laboratory assistant prepared a potassium chloride solution for her class by dissolving 5.34 g of KCI in 45. What mass of the indicated solute does each of the 152 g of water. What is the mass percent of the so- following solutions contain? lution she prepared? a. 2.50 1. of 13.1 M HCI solution 21. The soda you are drinking contains 0.5% by mass b. 15.6 ml of 0.155 M NaOH solution sodium benzoate as a preservative. What approxi- mate mass of sodium benzoate is contained in 1.00 1. 47. What mass of KNO, is required to prepare 150. mL of the solution assuming that the density of the soda of 0.250 M KNO, solution? is 1.00 g/ml. (the approximate density of water)