Exam_3A_S08 Key

Exam_3A_S08 Key - Exam 3 April 23, 2008 Chemistry 115 Dr....

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Exam 3 April 23, 2008 Chemistry 115 Dr. Larkin Spring 2008 Name __ KEY ___ For all math problems, show all work and conversion factors for full credit. I must be able to follow your reasoning. Be sure to express answers to the proper number of significant figures. Write legibly or you will receive no credit (If I cannot read it, the answer is wrong). If there is a space provided, put your answer there. For Lewis dot structures, make sure that all dots are clear and in pairs. There will be no partial credit given for Lewis dot structures. Useful constants and equations: IA 1 IIA 2 IIIB 3 IVB 4 VB 5 VIB 6 VIIB 7 VIIIB 8 VIIIB 9 VIIIB 10 IB 11 IIB 12 IIIA 13 IVA 14 VA 15 VIA 16 VIIA 17 VIII 18 1 H 1.008 13 14 15 16 17 2 He 4.003 3 Li 6.94 4 Be 9.012 Periodic Table of the Elements 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00 10 Ne 20.18 11 Na 22.99 12 Mg 24.31 3 4 5 6 7 8 9 10 11 12 13 Al 26.98 14 Si 28.09 15 P 30.97 16 S 32.07 17 Cl 35.45 18 Ar 39.95 19 K 39.10 20 Ca 40.08 21 Sc 44.96 22 Ti 47.88 23 V 50.94 24 Cr 52.00 25 Mn 54.94 26 Fe 55.85 27 Co 58.93 28 Ni 58.69 29 Cu 63.55 30 Zn 65.39 31 Ga 69.72 32 Ge 72.59 33 As 74.92 34 Se 78.96 35 Br 79.90 36 Kr 83.80 37 Rb 85.47 38 Sr 87.62 39 Y 88.9 40 Zr 91.2 41 Nb 92.9 42 Mo 95.9 43 Tc 99.0 44 Ru 101.1 45 Rh 102.9 46 Pd 106.4 47 Ag 107.8 48 Cd 112.4 49 In 114.8 50 Sn 118.7 51 Sb 121.8 52 Te 127.6 53 I 126.9 54 Xe 131.3 55 Cs 132.9 56 Ba 137.3 57 La 138.9 72 Hf 178.5 73 Ta 180.9 74 W 183.8 75 Re 186.2 76 Os 190.2 77 Ir 192.2 78 Pt 195.1
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Exam_3A_S08 Key - Exam 3 April 23, 2008 Chemistry 115 Dr....

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