1. Fill in the blanks in the table for aqueous solutions of the compounds shown. The density of the solution is in g/mL. Abbreviations: m is molality, Mass % is the mass percentage of the solute, Mole Frac. is the mole fraction of the solute, and M is molarity of the solute. Compound f.w. d. soln. Mass % Mole Frac. M m 8.000 CH. HAPO NaCl 58.05 98.00 58.44 0.9874 1.1804 1.0894 4.373 2.330 CHEM IP92 Assignment 12B (Liquids, Solids, and Intermolecular Forces). Version # 28 1. Draw Lewis structures for the following compounds. Remember to enclose ions in square brackets. On your answer sheet, state the number of valence electrons in each compound. (a) MgCl, (b) Ca(NO:): (c) CHF 2. List the most important (strongest) intermolecular force(s) that must be overcome to (a) melt solid Na2SO4 (b) vaporize liquid BF (c) remove water of hydration from CoCl2.2H2O Consider what happens when liquid PCI dissolves in liquid CCI. (a) What type of attractive forces must be overcome in the CCI.? (b) What type of forces must be overcome in the liquid PCI, 2 (c) What type of attractive forces are important when PCI, dissolves in liquid CCI.? (a) Which of the ions K.. Ca. Rb will have the large st heat of hydration? Which the smallest? (b) of the two compounds CaCl and BaCl2, which has the stronger intermolecular forces? c) of the two compounds CC and CH OH, which has the stronger intermolecular forces