H Chemistry Chapter 14
Test 3 Review Guide - Solutions
Name:
The test may include, but is not limited to, the following topics. Use your old quizzes and notes to
study. The test will be given on Tuesday, March 25th.
1. Review vocabulary for this chapter.
2. What is an aqueous solution?
3. What is the difference between the solute and the solvent?
4. What is the difference between soluble and insoluble?
5. What is the difference between immiscible and miscible?
6. What does the term solvation mean?
7. What is a polar molecule?
8. For a substance to be soluble in another substance, what must occur?
9. What types of solute will a non-polar solvent dissolve?
10. What are three factors that affect the rate of solvation for a solid solute?
11. What is the difference between unsaturated, saturated and supersaturated?
12. How does temperature affect solubility of solids and gases?
13. What is the effect of pressure on solubility of gases?
14. What are colligative properties?
15. What is an electrolyte?
16. How does adding solute affect vapor pressure? Why?
17. How does adding solute affect boiling point? Why?
18. What happens to the freezing point in the presence of solutes? Why?
19. What is osmosis?
20. What is the effect of solute particles on osmotic pressure?
21. What is a homogenous mixture?
22. What is a suspension and give two examples?
23. Why do the particles of suspensions settle out?
24. What is a colloid and give two examples?
25. What are two differences between colloids and suspensions?
26. What is Brownian movement?
27. What is the Tyndall effect?
28. How do solutions differ from colloids? How are they the same?
29. Calculate the molarity of a 2.0 L solution containing 252 grams of LiCl.
30. If 1.2 g of a gas at 6 atm of pressure dissolves in 1.0 L of water at 25oC, how much will dissolve in
1.0 L of water at 4.5 atm of pressure and the same temperature?
31. What is the % concentration by mass of 65 g of C6H12O6 dissolved in 500 g of water?
32. What volume of concentrated HCl (12.1M) should be used to prepare 250 mL of a 0.050M solution?
33. What is the solution concentration by volume of 54 mL of alcohol dissolved in 320 mL of water?
34. How many grams of NaSO4 are in 1.8 L of a 2.7M solution?
35. How many grams of sodium hydroxide are needed to prepare 1.0 L of a 2.34 M solution?
36. What volume of 3.29M (NH4)2SO4 should be used to prepare 100 mL of a 0.20M solution?
H Chemistry Chapter 14
Test 3 Review Guide - Solutions
Name:
37. What is the molality of the solution formed by mixing 104 g of silver nitrate (AgNO3) with 1.75 kg of
water?
38. Suppose that 5.25 g of sulfur (S8) is dissolved in 682 g of the liquid solvent carbon disulfide (CS2).
What is the molality of the sulfur solution?
39. Review and understand questions involving solubility curves.
38. A solution with 35g of KCl in 100g of water at 60 °C is saturated, unsaturated, or supersaturated?
40. An unsaturated solution of KNO 3 at 80°C has 50g solute dissolved in 100g of water. How
many more grams of solute must be added to saturate the solution?
41. If a saturated solution of KCl in 100g of water at 80°C is cooled to 50°C, ______ g of solute will
recrystallize.
42. Determine the approximate solubility of potassium chloride at 20°C. ______
How many grams of KCl would dissolve in 300 g of water at the same temperature? ______
How many more grams of KCl could be dissolved if the temperature of the water was raised to 40°C?
______
43. What is the mass of Ce 2 (SO 4 ) 3 that will dissolve in 50 g of water at 10°C? ______
44. Determine the mass of additional KClO 3 that will dissolve in 200 g of water if the
temperature is raised from 30°C to 90°C. ______