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A) 0.274 M B) 2.74 M C) 3.04 M D) 4.19 M E) 17.5 M 5. Calculate the molarity of a 17.5% (by mass) aqueous solution of nitric acid (63.01 g/mol) whose density is 1.51 g/mL. d= M = 17.59 salute A) - 0.45 C B) + 0.45 C C) 0.23 C D) + 0.23 C E) 1.23 C 7. One of the following is NOT true nsdute n = 17.S A) 2.216 B) 125.5 C) 225.9 D) 115.8 E) 86.5 100 g 1-5180-27 100 63-01 63.01 = 0.27 1-51 = 0.27 mole = 1.5& mole 6. Calculate the freezing point of a solution containing 20 grams of KCl and 2200.0 grams of water. The molal-freezing-point-depression constant (K) for water is 1.86 C/m solvent m A) The solubility of a gas in liquid is proportional to the gas pressure on top of the liquid B) Liquids that mix in all proportions are miscible C) The solubility of gases and solids in liquid increase with increasing the temperature D) Hydration is an example for solvation but when the solvent is water E) Solubility is the amount of solute needed to form a saturated solution 8. A solution is prepared by adding 40.00 g of lactose to 110.0 g of water at 55 C The partial pressure of water above the solution is. torr. The vapor pressure of pure water at 55 C is 118.0 torr. The molar mass of lactose is 342.3 g/mol.