10:20 Exam I Key; FALL 2009
| Pink, Exam I, v1 | Blue, Exam I, v2 | QUESTION | Yellow, Exam I, v3 |
| 5.6 pts each unless noted | 5.6 pts each unless noted | 5.6 pts each unless noted | |
| C (B = 2.8pts) | C | 1 | E |
| C (E = 2.8pts) | E | 2 | C (E = 2.8pts) |
| D | C (A = 2.8pts) | 3 | D |
| B | B (C = 2.8pts) | 4 | C |
| A | A | 5 | E |
| B | A | 6 | B (C = 2.8pts) |
| A | D | 7 | E |
| C | D | 8 | C |
| E | A (B = 2.8pts) | 9 | D |
| A (D = 2.8pts) | D (C = 2.8pts) | 10 | B |
| C | C | 11 | C (D = 2.8pts) |
| C (D = 2.8pts) | B | 12 | B |
| D | E | 13 | D (B = 2.8pts) |
| D | B | 14 | A |
| E | B | 15 | E |
Multiple Choice = 15 x 5.6 = 84
Better to calculate your score by adding the point you got!
Short Answer= 8 pts each
PINK: # 16 Fe3O4 Empirical and Fe6O8 Molecular, #17 0.1615 mole cmpd.; 0.9690 mole O; 9.725 E22 molecules; 1.945 e23 N atoms
Blue: #16 N2O3 Empirical and N4O6 Molecular, #17 0.2295 mol cmpd; 0.6885 mol S; 1.382 e23 molecules; 2.764 e23 Al atoms
Yellow: #16 CH2 Empirical and C4H8 Molecular, #17 0.5781 mol cmpd; 4.624 mol H; 3,481 e23 molecules; 6.962 e23 N atoms