1. 20 30 40 50 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50 10 ACIDS AND BASES A/B RXNS WATER AND SOLUTIONS GAS LAWS LAST TERM

2. LAST TERM Question 1 What property allows H 2 O to form H- bonds?

3. It is a polar molecule 10 pts

4. LAST TERM Question 2 What is the Kinetic Theory of Matter?

5. 1)All matter is made of particles 2)All particles have Brownian motion 3)All collisions are perfectly elastic 20 pts

6. LAST TERM Question 3 What structure does phosphorus pentachloride have?

7. Trigonal Bipyramidal 30 pts

8. LAST TERM Question 4 What is the abbreviated electron configuration of Te?

9. Te= [Kr]5s 2 4d 10 5p 4 40 pts

10. LAST TERM Question 5 What is the product(s) of this reaction? I 2(l) + HF (g) 

11. No products form. There is no reaction because F is a more reactive element than I 50 pts

12. ACIDS AND BASES Question 1 When dealing with acids, what is “H 3 O + ” called?

13. A Hydronium Ion 10pts

14. ACIDS AND BASES Question 2 Name 3 strong acids

15. HCl  Hydrochloric acid H 2 SO 4  Sulfuric acid HNO 3  Nitric acid HBr  Bromic acid HI  Hydroiodic acid HClO 4  Perchloric acid HClO 3  Chloric acid 20pts

16. ACIDS AND BASES Question 3 What does pH stand for and who made the pH scale? DAILY DOUBLE!!! Your team can bet all, some, or none of your points. If you are correct  win that total plus 30 pts If you are wrong  lose that total plus 30 pts

17. pH  “Powers of Hydrogen”; “pouvier d’hydrogene S.P.L. Sorenson 30 pts

18. ACIDS AND BASES Question 4 If I have an acid with a pH of 1 by what factor must it be diluted to make it pH 6?

19. 100,000 40 pts

20. ACIDS AND BASES Question 5 NaOH as a pH of 10, so what is the [H + ], [OH - ], and pOH?

21. pH=10 pOH= 14-10= 4 [H + ]= 1.0 x 10 -10 M [OH - ]= 1.0 x 10 -4 M 50 pts

22. ACID/BASE REACTIONS Question 1 Titration reveals that 11.6 mL of 3.0 M sulfuric acid are required to neutralize the sodium hydroxide in 25.00 mL of NaOH solution. What is the molarity of the NaOH solution?

23. H 2 SO 4 (aq) + 2NaOH(aq)  2H 2 O(l) + Na 2 SO 4 (aq) 2(M A V A ) = M B V B M B = 2(3.0 x 0.0116L)/ 0.025L = 2.784 M = 2.784 M 10 pts

24. ACID/BASE REACTIONS Question 2 What are the 2 parts of a buffer and what does it do?

25. 1)Weak acid or base 2)Salt of that same weak acid or base Slows changes in pH 20 pts

26. ACID/BASE REACTIONS Question 3 What is the net ionic equation for a strong acid mixed with a strong base?

27. H + (aq) + OH - (aq)  H 2 O (l) 30 pts

28. ACID/BASE REACTIONS Question 4 CH 3 COO − + H 2 O  CH 3 COOH + OH − What is the acid, base, conjugate acid, and conjugate base ?

29. CH 3 COO −  Base H 2 O  Acid CH 3 COOH  conjugate acid OH −  conjugate base 40 pts

30. ACID/BASE REACTIONS Question 5 In the reaction NaCl + NaOH Cl - and Na + are known as ___________ since they do not really take part in the reaction DAILY DOUBLE!!! Your team can bet all, some, or none of your points. If you are correct  win that total plus 50 pts If you are wrong  lose that total plus 50 pts

31. Spectator Ions 50 pts

32. WATER AND SOLUTIONS Question 1 At what temperature is water MOST dense?

33. 4oC4oC4oC4oC 10pts

34. WATER AND SOLUTIONS Question 2 A solution that has a high amount of solute and a low amount of solvent can be called what?

35. 20pts Concentrated solution

36. WATER AND SOLUTIONS Question 3 The scattering of light as it passes through a colloid is known as what?

37. 30 pts The Tyndall Effect

38. WATER AND SOLUTIONS Question 4 ? What is the molarity of a solution made by dissolving 20.0 g of NaOH in enough water to make a 482 cm 3 solution.? Na=23.0 H=1.00 O=16.0

39. 20.0g NaOH/40.0g NaOH= 0.50 mol 482 cm 3 = 483ml = 0.483 L 0.5mol / 0.483L = 1.04 M 40pts

40. WATER AND SOLUTIONS Question 5 Explain what is happening here to H 2 O and Hg?

41. Capillary Action: -H 2 O has both cohesion and adhesion forces so it can move up the tube against gravity -Hg lacks adhesion and has weaker cohesion so it sinks 50pts

42. GAS LAWS Question 1 Which gas law shows a proportional connection between T and P ?

43. Gay-Lussac’s Law P 1 /T 1 = P 2 /T 2 10 pts

44. GAS LAWS Question 2 In the Ideal Gas Law, what is the value for R when pressure is in atms?

45. R= 0.08206 20 pts

46. GAS LAWS Question 3 How many mols of CH 4 gas is in 100.8 L container at STP? How many mols of CH 4 gas is in 100.8 L container at STP?

47. 100.8 L/ 22.4 L/mol = 4.50 mol of CH 4 30 pts

48. GAS LAWS Question 4 2.00 L of a gas is collected at 25.0 °C and 745.0 mmHg. What is the volume at STP?

49. P 1 V 1 /T 1 = P 2 V 2 /T 2 -P 1 = 745.0 mmHg P 2 = 760.0 mm Hg -V 1 = 2.00 L V 2 = ??? -T 1 = 298 K T 2 = 273 K V 2 = (273)(745.0)(2.00)/(760)(298) = 1.80 L = 1.80 L 40 pts

50. GAS LAWS Question 5 Air is made from H 2 O, CO 2, O 2, Ar, and N 2. If the partial pressure for each gas is: H 2 O  1.28 kPa CO 2  0.05 kPa O 2  20.9 kPa Ar  0.97 kPa What is the kPa for N 2 ?

51. Atmospheric pressure  101.3 kPa 101.3-(1.28+0.05+20.9+0.97) = 78.1 kPa 50 pts