Jeopardy

1. Jeopardy Choose a category. You will be given the answer. You must give the correct question. Click to begin.

2. Choose a point value. Choose a point value. Click here for Final Jeopardy

3. Vocab Colligative Properties Molarity & Molality Solubility Curves Properties of Solutions 100 Points 100 Points 100 Points 100 Points 100 Points 200 Points 200 Points 200 Points 200 Points 200 Points 300 Points 300 Points 300 Points 300 Points 300 Points 400 Points 400 Points 400 Points 400 Points 400 Points 500 Points 500 Points 500 Points 500 Points 500 Points

4. A solution that contains a relatively small amount of solute in a solvent

5. dilute solution

6. A substance that dissolves in water to give a solution that conducts electric current

7. electrolyte

8. A type of colloid in which a solid is dispersed throughout a liquid.

9. A sol

10. The particles in a solvent are so large that they settle out unless the mixture is constantly stirred or agitated

11. suspension

12. The rapid escape of a gas from a liquid in which it is dissolved

13. effervescence

14. Colligative properties depend, NOT on the identity of the solute, but on the ___________.

15. concentration (# of particles) of solute dissolved in the solution

16. Pure, unsweetened tea boils at 99.5°C. If 5 grams of sugar were dissolved in that tea and then the solution was brought to a boil, would the new boiling point be equal to, greater than, or less than 99.5°C?

17. greater than 99.5°C; boiling point elevation

18. In the winter, when trucks add salt to icy streets, what colligative property is being displayed?

19. freezing point depression

20. What happens to the vapor pressure above a saltwater solution if an additional 25 grams of NaCl are dissolved into the solution?

21. The vapor pressure decreases; vapor pressure lowering

22. If a red blood cell is placed in a hypertonic solution, it will begin to shrivel. Which solution is more concentrated, the one inside of the cell or the one outside of the cell?

23. outside of the cell; according to osmosis, the water (solvent) moves from lower to higher concentration so it leaves the less concentrated blood cell and enters the more concentrated outside solution, causing the cell to shrivel

24. Give the formulas for finding both molarity and molality.

25. Molarity (M) = mol / L Molality (m) = mol / kg

26. The molarity of a solution in which 48.5 grams of NaCl are dissolved in 0.50 liters of solution.

27. 1.66 M

28. The molality of a solution in which 0.4 moles of glucose are dissolved in 645 grams of solvent.

29. 0.62 m

30. The number of moles in 300 mL of 2.5 M lithium chloride.

31. 0.75 mols

32. The number of grams of solvent in a 2.5 m solution that has 0.45 moles of KNO3 dissolved in it.

33. 0.18 kg = 180 grams

34. The number of grams of KNO3 soluble in 100 grams of water at 60⁰C.

35. 100grams

36. The least soluble compound at 70⁰C.

37. Ce2(SO4)3

38. The type of solution found at 40⁰C, when 110 grams of NaNO3 is dissolved in 100 grams of water.

39. supersaturated

40. The amount of NH4Cl that can be dissolved in 300 grams of water at 20⁰C.

41. 111 grams

42. The amount of precipitate formed when a saturated solution of KNO3 is cooled from 60⁰C to 20⁰C.

43. 70 grams

44. Which would dissolve faster in coffee: granulated sugar or cubes of sugar?

45. granulated sugar – more surface area of each particle is exposed

46. As the temperature of a gas increases, the solubility will do this.

47. decrease

48. As the pressure of a gas increases, its solubility will do this.

49. increase

50. As the molar mass of a gas decreases, it’s solubility will do this.