Chapter 13 Homework 1.) Explain what the phrase "like dissolves like" means. If 2.) What is enthalpy of solution? nthalpy add, a soveretto a solute and they have simifer elements they will dissolve better 3.) Describe the processes occurring in a saturated solution. 4.) Calculate the enthalpy of solution for sodium hydroxide. Is the process exothermic or endothermic? AHr NaOH (s) = -425.6 KJ/mol AHF NaOH (aq) = -470.1 KJ/mol 5.) The solubility of nitrogen at 20 C and 760 torr is .0019 g/L. Determine the solubility at 20 C and 5000 torr. 6.) If 33.5 g of sucrose (C12H22011) is dissolved in 265 ml of water (assume d = 1.00 g/mL), determine the molality, mole fraction of sucrose, and percent-by-mass of sucrose. 7.) Determine the amount of glucose (C6H12O6) that needs to be dissolved to prepare 45.0 g of a 15.0 % (w/w) solution. 8.) Calculate the vapor pressure of water, when a solution is prepared by dissolving 9.00 g of urea ((NH)2CO) in 10.0 g of water at 60 C. (The vapor pressure of water at 60 C