chemistry_sl_p1_2

chemistry_sl_p1_2 - c 45 minutes IB DIPLOMA PROGRAMME...

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CHEMISTRY STANDARD LEVEL PAPER 1 Wednesday 14 May 2003 (afternoon) 45 minutes M03/420/S(1)+ c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI 223-161 12 pages INSTRUCTIONS TO CANDIDATES y Do not open this examination paper until instructed to do so. y Answer all the questions. y For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided.
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87 Fr (223) 55 Cs 132.91 37 Rb 85.47 19 K 39.10 11 Na 22.99 3 Li 6.94 1 H 1.01 88 Ra (226) 56 Ba 137.34 38 Sr 87.62 20 Ca 40.08 12 Mg 24.31 4 Be 9.01 2 89 ‡ Ac (227) 57 † La 138.91 39 Y 88.91 21 Sc 44.96 90 Th 232.04 58 Ce 140.12 72 Hf 178.49 40 Zr 91.22 22 Ti 47.90 91 Pa 231.04 59 Pr 140.91 73 Ta 180.95 41 Nb 92.91 23 V 50.94 92 U 238.03 60 Nd 144.24 74 W 183.85 42 Mo 95.94 24 Cr 52.00 Atomic Number Element Atomic Mass 93 Np (237) 61 Pm 146.92 75 Re 186.21 43 Tc 98.91 25 Mn 54.94 94 Pu (242) 62 Sm 150.35 76 Os 190.21 44 Ru 101.07 26 Fe 55.85 95 Am (243) 63 Eu 151.96 77 Ir 192.22 45 Rh 102.91 27 Co 58.93 96 Cm (247) 64 Gd 157.25 78 Pt 195.09 46 Pd 106.42 28 Ni 58.71 97 Bk 65 Tb 158.92 79 Au 196.97 47 Ag 107.87 29 Cu 63.55 The Periodic Table 98 Cf (251) 66 Dy 162.50 80 Hg 200.59 48 Cd 112.40 30 Zn 65.37 99 Es (254) 67 Ho 164.93 81 Tl 204.37 49 In 114.82 31 Ga 69.72 13 Al 26.98 5 B 10.81 100 Fm (257) 68 Er 167.26 82 Pb 207.19 50 Sn 118.69 32 Ge 72.59 14 Si 28.09 6 C 12.01 101 Md (258) 69 Tm 168.93 83 Bi 208.98 51 Sb 121.75 33 As 74.92 15 P 30.97 7 N 14.01 102 No (259) 70 Yb 173.04 84 Po (210) 52 Te 127.60 34 Se 78.96 16 S 32.06 8 O 16.00 103 Lr (260) 71 Lu 174.97 85 At 53 I 126.90 35 Br 79.90 17 Cl 35.45 9 F 19.00 86 Rn (222) 54 Xe 131.30 36 Kr 83.80 18 Ar 39.95 10 Ne 20.18 He 4.00 0 – 2 – M03/420/S(1)+ 223-161
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1. What amount of oxygen, , (in moles) contains molecules? 2 O 22 1.8 10 × A. 0.0030 B. 0.030 C. 0.30 D. 3.0 2. Which compound has the empirical formula with the greatest mass? A. 26 CH B. 41 0 C. 51 0 D. 66 3. 22 2 2 2 __ C H (g) __ O (g) __ CO (g) __ H O(g) + + When the equation above is balanced, what is the coefficient for oxygen? A. 2 B. 3 C. 4 D. 5 – 3 – M03/420/S(1)+ 223-161 Turn over
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4. of sulfur dioxide is reacted with of oxygen according to the equation below. 3 3.0 dm 3 2.0 dm 22 3 2SO(g ) O(g ) ) + What volume of sulfur trioxide (in is formed? (Assume the reaction goes to completion and all 3 dm ) gases are measured at the same temperature and pressure.) A. 5.0 B. 4.0 C. 3.0 D. 2.0 5. Consider the composition of the species W, X, Y and Z below.
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chemistry_sl_p1_2 - c 45 minutes IB DIPLOMA PROGRAMME...

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