14. Which of the following solutes, dissolved in 1.0 kg of water, creates a solution that boils at the highest temperature? a) 0.010 mol HČI b) 0.010 mol HF c) 0.010 mol HCIO, d) 0.010 mol H2SO4 e) 0.010 mol HaPO4 15. Which of the following solutions has the lowest osmotic pressure? a) 0.15 M Nazs b) 0.10 M CaCl2 c) 0.15 MBa(NO2)2 d) 0.20 M NH3 e) 0.10 M AI(NO3)a

Which of the following aqueous solutions has the highest boiling point? A) 0.2 m KCl b) 0.3 m HOCH2CH2OH c)0.2 m Na2SO4 d)0.1 m NaCl+ 0.1 m HOCH2CH2OH E)0.2 m AgCl

UESTION 3 Choose all the statements that are true. The solubility of a gas in water decreases with increasing temperature. O Nonpolar liquids tend to be insoluble in polar liquids. O Substances with similar intermolecualr forces tend to be insoluble in one another. O The weaker the attraction between the solute and solvent molecules, the greater the solubility. O The solubility of a gas increases in direct proportion to its partial pressure above the solution.

3. A homemade batch of antifreeze is made by mixing 3 L of water and 1 L of propylene glycol methyl ether (C,H10O2), which has a density of 0.920 g mL-. What is the freezing point of the antifreeze solution?