Unit 4 Self-Quiz, pages 500–501
1. (b)
2. (d)
3. (a)
4. (b)
5. (c)
6. (a)
7. (d)
8. (b)
9. (b)
10. (c)
11. (d)
12. (c)
13. (a)
14. (b)
15. (d)
16. (c)
17. (b)
18. (a)
19. True
20. False. The production of a single hamburger requires about 10 000 L of water.
21. False. When one liquid dissolves in another, the liquid with the greater volume is considered
to be the solvent.
22. False. Alcohol is a polar liquid, so the best way to rinse the taste of alcohol from your mouth
would be to drink water.
23. False. When you add extra solute to an already saturated solution, the extra solute does not
dissolve.
24. True
25. True
26. False. When solute is added to a solution, the concentration of the solution increases.
27. False. When 2.30 L of a 2.00 mol/L solution is diluted to a final volume of 9.20 L, its final
concentration is 0.50 mol/L.
28. False. Potassium ions form soluble compounds with all anions.
29. True
30. True
31. True
32. False. When 1.00 mol of iron(III) oxide reacts with 50.0 g of aluminum, according to the
following equation, the metal is the limiting reagent.
33. False. Phosphorous acid has the formula H3PO3(aq).
34. True
35. True
36. False. The pH of the solution being titrated changes rapidly near the equivalence point.
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Unit 4: Solutions and Solubility
U4-4