1. which of the following compounds would you expect to be most soluble in H20?

Question

1. which of the following compounds would you expect to be most soluble in H20? CH3F, CCl4, CH4, BF3, CF4 2. Which of the following will produce the lowest osmotic pressure in 0.2 L of water at 305 K? Answer A. 1.0 g fructose (molar mass 180.2 g/mol) B. 1.0 g maltose (molar mass 342.3 g/mol) C. 1.0 g sorbitol (molar mass 182.2 g/mol) D. 1.0 g xylitol (molar mass 152.2 g/mol) E. 1.0 g threitol (molar mass 122.1 g/mol) 3. Which of the following would be expected to deviate the most from the normal freezing point of water (0o C)? Answer A. 1.00 m NaBr B. 0.50 m Al2(SO4)3 C. 0.75 m NaCl D. 0.50 m NaF E. 1.00 m NaCl 4. What is the molality (m) of a solution containing 3.62 g of urea (MW 60.06 g/mol) in 513 g of water? Answer A. 9.59 m B. 0.117 m C. 3.20 m D. 1.04 m E. 117 m 5. The solubility of a gas in H2O at a temperature of 25

Explanation / Answer

1. CH3F 2.2 B. 1.0 g maltose (molar mass 342.3 g/mol) 3 D. 0.50 m NaF 4. (B) 0.117m 5. (D) 0.119 M

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