Question 6 Not yet answered What is the mass percent of a lithium fluoride in a solution prepared by dissolving 52.5 g of LiF in 0.800 kg of water. Hint given in general feedback Marked out of 1.00 Answer: Question 7 A 5.40 g sample of a nonvolatile nonelectrolyte blue crystalline solid is dissolved in 19.7 g of acetic acid, producing a solution that bolis at 119.7C. Find the molar mass of the blue solid in g/mol. Not yet answered Marked out of 1.00 ki ("C/m) TABLE 12.3 Bolling-Point Elevations and Freezing-Point Depression Constants for Solvents Boiling ko Freezing Solvent Point ("C/m) Point ("C) Acetic acid 117.90 3.07 16.60 Benzene 80.10 2.59 5.51 Naphthalene 80.2 Water 100.0 0.512 0.00 9.90 4.90 6.8 1.86 Hint given in feedback