1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 SolutionsSolubility Molarity DilutionFeeling Lucky

2. Solutions $100 (Question) The dissolving substance in a solution

3. Solutions $100 (Answer) solvent

4. Solutions $200 (Question) Separating liquids based on simply pouring the liquid off and leaving the solids behind

5. Solutions $200 (Answer) decanting

6. Solutions $300 (Question) A stable homogeneous mixture

7. Solutions $300 (Answer) solution

8. Solutions $400 (Question) A solution in which alcohol is the solvent

9. Solutions $400 (Answer) tincture

10. Solutions $500 (Question) Soap is an emulsifier. What will it do to oil and water?

11. Solutions $500 (Answer) An emulsifier will keep oil and water mixed.

12. Solubility $100 (Question) The amount of dissolved solute is greater than the amount that can permanently remain in solution at that temperature

13. Solubility $100 (Answer) Supersaturation

14. Solubility $200 (Question) Pressure has the greatest effect on the solubility of this

15. Solubility $200 (Answer) Gases

16. Solubility $300 (Question) The amount of a particular substance (solute) in a given quantity of a solution.

17. Solubility $300 (Answer) Concentration

18. Solubility $400 (Question) How many grams of NaNO 3 will dissolve at 40 o C?

19. Solubility $400 (Answer) 105 grams

20. Solubility $500 (Question) What type of solution forms when 90 grams of KNO 3 is dissolved in 100 grams of water at 60 o C?

21. Solubility $500 (Answer) Unsaturated

22. Molarity $100 (Question) What is the molarity of 0.867 moles of NaCl in 2.5 L of solution?

23. Molarity $100 (Answer) 0.867 moles = 2.5 L 0.35 M NaCl

24. Molarity $200 (Question) What is the molarity of 1.30 moles of KNO 3 in 250 mL of solution?

25. Molarity $200 (Answer) 1.30 moles = 0.250 L 5.2 M KNO 3

26. Molarity $300 (Question) How many moles of K 2 Cr 2 O 7 are contained in 330 mL of a 2.4 M solution?

27. Molarity $300 (Answer) 0.24 M x 0.330 L = 0.79 moles K 2 Cr 2 O 7

28. Molarity $400 (Question) A solution contains 2.55 moles of NaOH and its concentration is 7.5 M. What is its volume in mL?

29. Molarity $400 (Answer) 2.55 moles = 0.34 L 7.5 M 340 mL 0.34 L x 1,000 mL = 1 L

30. Molarity $500 (Question) What mass in grams of KCl would be needed to make 500.0 mL of 1.5 M solution?

31. Molarity $500 (Answer) 0.500 L X 1.5 M = 0.75 mol KCl 0.75 mol KCl x 74.55 g KCl = 1 mol KCl 56 g KCl

32. Dilution $100 (Question) What will be the final concentration of solution, when 14.0 mL of 4.20 M Na 2 CO 3 is diluted to 86.0 mL?

33. Dilution $100 (Answer) 0.684 M Na 2 CO 3 4.20 M x 14.0 mL = M 2 x 86.0 mL

34. Dilution $200 (Question) Concentrated HCl is 12.0 M. What volume is needed to make 500.0 mL of 3.00 M solution?

35. Dilution $200 (Answer) 12.0 M x V 1 = 3.00 M x 500.0 mL 125 mL

36. Dilution $300 (Question) 16.4 mL of 1.25 M solution of NaCl is on hand, but you need a 0.65 M solution. How many mL of 0.65 M can you make?

37. Dilution $300 (Answer) 1.25 M x 16.4 mL = 0.65 M x V 2 32 mL

38. Dilution $400 (Question) If you have 225 mL of 2.3 M NaBr solution, what will the concentration be if you add 750 mL more water to it?

39. Dilution $400 (Answer) 2.3 M x 225 mL = M 2 x 975 mL 0.53 M

40. Dilution $500 (Question) A student wants to dilute 25.0 mL of 3.50 M H 2 SO 4 to 1.50 M solution. How many mL of water is needed?

41. Dilution $500 (Answer) 3.50 M x 25.0 mL = 1.50 M x V 2 33.3 mL of water is needed 58.3 mL ‒ 25.0 mL =

42. Feeling Lucky $100 (Question) What is the meaning of immiscible

43. Feeling Lucky $100 (Answer) Two liquids do not dissolve in one another

44. Feeling Lucky $200 (Question) A mixture that appears homogenous throughout and shows the Tyndall effect

45. Feeling Lucky $200 (Answer) colloid

46. Feeling Lucky $300 (Question) CO 2 in H 2 O is an example of which solute-solvent solution?

47. Feeling Lucky $300 (Answer) Gas – liquid

48. Feeling Lucky $400 (Question) What three factors affect the solubility of a solute?

49. Feeling Lucky $400 (Answer) Surface area, temperature, shaking/stirring

50. Feeling Lucky $500 (Question) If 121 grams of NH 4 Cl were added to 100 g of water at 90 o C, how much will not dissolve?

51. Feeling Lucky $500 (Answer) 121 g – 70 g = 51 grams of NH 4 Cl will not dissolve