ChapterTweleveReviewA - Review 1 Which one of the following...

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Review September 21, 2007 1. Which one of the following would be immiscible with water? A. C 2 H 5 – OH O || B. CH 3 – S – CH 3 C . S = C = S D. NH 3 2. Which response lists all the following pairs that are miscible liquids. Pair # 1. octane (C 8 H 18 ) and water Pair # 2. acetic acid (CH 3 COOH) and water Pair # 3. octane (C 8 H 18 ) and carbon tetrachloride(CCl 4 ) A. 1, 3 B. 1, 2 C. 3 D. 2 E. 2, 3 3. Which of the following liquids would make a good solvent for iodine, I 2 ? A. HCl B. H 2 O C. CH 3 OH D. NH 3 E . CS 2 4. Which of the following compounds should be soluble in CCl 4 ? A. NaCl B. H 2 O C. NaOH D. C 8 H 18 E. None of these 5. Which of the following gives the molarity of a 17.0% by mass solution of sodium acetate, CH 3 COONa (molar mass = 82.0 g/mol) in water? The density of the solution is 1.09 g/mL. A. 2.26 × 10 – 6 M B. 0.207 M C. 2.07 M D. 2.26 M E. 2.72 M
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6. What is the percent CdSO 4 by mass in a 1.0 molal aqueous CdSO 4 solution? A. 0.001 % B. 0.10 % C . 17.2 % D. 20.8 % E. 24.4 % 7. Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO 3 and 295 mL of water. The density of water is 0.997 g/mL. A. 1.51 % B.7.57 % C. 13.3 % D. 15.2 % E. None of these 8. How many grams of water are needed to dissolve 27.8 g of ammonium nitrate NH 4 NO 3 in order to prepare a 0.452 m solution? A. 769 g B. 36.2 g C. 100. g D. 0.157 g E. 157 g 9. In how many grams of water should 25.31 g of potassium nitrate (KNO 3 ) be dissolved to prepare a 0.1982 m solution? A. 250.0 g B. 792 g C. 1,000. g D. 1,263 g E. 7,917 g 10. Calculate the molality of a solution containing 14.3 g of NaCl in 42.2 g of water. A. 2.45 × 10 - 4 m B. 5.80 × 10 - 4 m C. 2.45 × 10 - 1 m D. 103 m E. 5.80 m 11. Consider a solution made from a nonvolatile solute and a volatile solvent. Which statement is true? A. The vapor pressure of the solution is always greater than the vapor pressure of the pure solvent. B. The boiling point of the solution is always greater than the boiling point of the pure solvent. C. The freezing point of the solution is always greater than the freezing point of the pure solvent. 12. Arrange the following aqueous solutions in order of increasing boiling points. 0.050 m Mg(NO 3 ) 2 ; 0.100 m ethanol; 0.090 m NaCl A. Mg(NO 3 ) 2 < NaCl < ethanol B. ethanol < Mg(NO 3 ) 2 < NaCl C. ethanol < NaCl < Mg(NO 3 ) 2 D. NaCl < ethanol < Mg(NO 3 ) 2 E. Mg(NO 3 ) 2 < ethanol < NaCl 13. Dissolving a solute such as KOH in a solvent such as water results in
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A. an increase in the melting point of the liquid. B. a decrease in the boiling point of the liquid. C. a decrease in the vapor pressure of the liquid. D. no change in the boiling point of the liquid. 14.
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ChapterTweleveReviewA - Review 1 Which one of the following...

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