The 1997 NChO Local Section Exam multiple choice answers.
These answers are my own solutions, so if you find a mistake or several, please e-mail me to let me know. I really haven't checked them closely, although I have checked most.
1. | A | 21. | C | 41. | C | ||
2. | B | 22. | B | 42. | B | ||
3. | B | 23. | C | 43. | B | ||
4. | D | 24. | A | 44. | D | ||
5. | C | 25. | A | 45. | C | ||
6. | D | 26. | D | 46. | B | ||
7. | A | 27. | A | 47. | A | ||
8. | A | 28. | D | 48. | D | ||
9. | B | 29. | D | 49. | C | ||
10. | B | 30. | C | 50. | D | ||
11. | D | 31. | A | 51. | C | ||
12. | D | 32. | C | 52. | C | ||
13. | B | 33. | C | 53. | B | ||
14. | C | 34. | A | 54. | B | ||
15. | B | 35. | C | 55. | D | ||
16. | A | 36. | A | 56. | B | ||
17. | A | 37. | B | 57. | A | ||
18. | B | 38. | C | 58. | D | ||
19. | C | 39. | D | 59. | A | ||
20. | C | 40. | A | 60. | A |
Comment on #45 - As the E° becomes less negative (or more positive), the value of the Keq falls. Considering that the placement of Co2+ is in the denominator, the value of [Co2+] must increase, hence answer C.