An aqueous solution of KNO3 is made by using 82.5 g KNO3 dissolved into enough water to make a solution of 650. ml. The density of the solution is 1.05 g/mL. (Give all answers rounded to the correct sig figs. Include units in your answer) a. Calculate the molarity of the solution. b. Calculate the molality of the solution. c. Calculate the percent by mass of potassium nitrate in this solution. d. Calculate the mole fraction of potassium nitrate in this solution