Chem2FirstExSpr03rev - Page 1 of 5 BROOKLYN COLLEGE...

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Page 1 of 5 BROOKLYN COLLEGE Department of Chemistry Chemistry 2 First Lecture Exam Spring 2003 Name ______________________________ Circle the name of your lab instructor Kazimierska, Girotto, Voloshchuk Before you begin the exam, write your name on this page and on the answer booklet. WARNING : There are questions on BOTH sides of each page. Do NOT tear off this page. Answer Questions 1-12 on the question sheet. Do questions 13-24 in the exam booklet. For questions 13-24, show all work . Express answers with the proper units and to the correct number of significant figures. You have 90 minutes. Do not spend too much time on one question. This exam has 4 pages. Make sure you have all of them . Calculators may be inspected. PERIODIC CHART OF THE ELEMENTS IA IIA IIIA IVA VA VIA VIIA 0 1 H 1.0079 1 H 1.0079 2 He 4.0026 3 Li 6.941 4 Be 9.0122 5 B 10.81 6 C 12.011 7 N 14.007 8 O 15.999 9 F 18.998 10 Ne 20.179 11 Na 22.989 12 Mg 24.305 1 3 Al 26.981 14 Si 28.086 15 P 30.974 16 S 32.06 17 Cl 35.453 18 Ar 39.948 19 K 39.098 20 Ca 40.08 21 Sc 44.956 22 Ti 47.88 23 V 50.941 24 Cr 51.996 25 Mn 54.938 26 Fe 55.847 27 Co 58.933 28 Ni 58.69 29 Cu 63.546 30 Zn 65.38 31 Ga 69.72 32 Ge 72.59 33 As 74.922 34 Se 78.96 35 Br 79.904 36 Kr 83.80 37 Rb 85.468 38 Sr 87.62 39 Y 88.906 40 Zr 91.22 41 Nb 92.905 42 Mo 95.94 43 Tc (98) 44 Ru 101.07 45 Rh 102.91 46 Pd 106.42 47 Ag 107.87 48 Cd 112.41 49 In 114.82 50 Sn 118.69 51 Sb 121.75 52 Te 127.60 53 I 126.90 54 Xe 131.29 55 Cs 132.91 56 Ba 137.33 57 * La 138.90 72 Hf 178.49 73 Ta 180.95 74 W 183.85 75 Re 186.21 76 Os 190.2 77 Ir 192.22 78 Pt 195.08 79 Au 196.97 80 Hg 200.59 81 Tl 204.38 82 Pb 207.2 83 Bi 208.98 84 Po (209) 85 At (210) 86 Rn (222) 87 Fr (223) 88 Ra 226.0 89 # Ac 227.03 * Lanthanides 58 Ce 140.12 59 Pr 140.91 60 Nd 144.24 61 Pm (145) 62 Sm 150.36 63 Eu 151.96 64 Gd 157.25 65 Tb 158.92 66 Dy 162.50 67 Ho 164.93 68 Er 167.26 69 Tm 168.93 70 Yb 173.04 71 Lu 174.97 # Actinides 90 Th 232.03 91 Pa 231.03 92 U 238.03 93 Np 237.05 94 Pu (244) 95 Am (243) 96 Cm (247) 97 Bk (247) 98 Cf (251) 99 Es (254) 100 Fm (257) 101 Md (257) 102 No (255) 103 Lr (256)
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Page 2 of 5 Name ____________________________ Answer Questions 1–12 on these sheets. 1. (2 pts) Which one of these ions is the weakest base?
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Chem2FirstExSpr03rev - Page 1 of 5 BROOKLYN COLLEGE...

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