Practice Exam - General Chemistry Data Sheet ACS...

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General Chemistry Data Sheet ACS Examinations Institute ABBREVIATIONS AND SYMBOLS CONSTANTS amount in moles n ampere A atmosphere atm atomic mass unit u Avogadro constant Celsius temperature °C coulomb C electromotive force E energy of activation E a enthalpy H entropy S equilibrium constant K Faraday constant F free energy G frequency ν gas constant R gram g hour h joule J kelvin K kilopascal kPa liter L measure of pressure mmHg minute min molal m molar M molar mass M mole mol mole fraction χ Planck’s constant h pressure P rate constant k reaction quotient Q second s speed of light c temperature, K T time t volt V volume V R = 8.314 J·mol –1 ·K –1 R = 0.0821 L·atm·mol –1 ·K –1 1 F = 96,500 C 1 F = 96,500 J·V –1 N A = 6.022 × 10 23 mol –1 h = 6.626 × 10 –34 J·s c = 2.998 × 10 8 m·s –1 1 atm = 760 mmHg = 101.3 kPa V (ideal gas) at STP = 22.4 L·mol -1 Note: Notation such as m·s -1 is read as meters per second EQUATIONS Arrhenius Equation Nernst Equation Integrated Rate Laws RT E a Ae k = Q ln nF RT E E ° = zero: [ A ] = [ A ] 0 kt Graham’s Law of Effusion Nernst Equation at 25ºC first: ln[ A ] = ln[ A ] 0 kt 1/2 rate rate = A B B A M M Q n E E log 0.0592 ° = second: [] 0 1 1 A kt A + = PERIODIC TABLE OF THE ELEMENTS 1A 8A 1 H 1.008 2A 3A 4A 5A 6A 7A 2 He 4.003 3 Li 6.941 4 Be 9.012 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 3B 4B 5B 6B 7B 8B 1B 2B 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 72.61 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 88.91 40 Zr 91.22 41 Nb 92.91 42 Mo 95.94 43 Tc (98) 44 Ru 101.1 45 Rh 102.9 46 Pd 106.4 47 Ag 107.9 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 181.0 74 W 183.8 75 Re 186.2 76 Os 190.2 77 Ir 192.2 78 Pt 195.1 79 Au 197.0 80 Hg 200.6 81 Tl 204.4 82 Pb 207.2 83 Bi 209.0 84 Po (209) 85 At (210) 86 Rn (222) 87 Fr (223) 88 Ra 226.0 89 Ac 227.0 104 Unq (261) 105 Unp (262) 106 Unh (263) 107 Uns (262) 108 Uno (265) 109 Une (266) 58 Ce 140.1 59 Pr 140.9 60 Nd 144.2 61 Pm (145) 62 Sm 150.4 63 Eu 152.0 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.3 69 Tm 168.9 70 Yb 173.0 71 Lu 175.0 90 Th 232.0 91 Pa 231.0 92 U 238.0 93 Np 237.0 94 Pu (244) 95 Am (243) 96 Cm (247) 97 Bk (247) 98 Cf (251) 99 Es (252) 100 Fm (257) 101 Md (258) 102 No (259) 103 Lr (260)
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DIRECTIONS • When you have selected your answer, blacken the corresponding space on the answer sheet with a soft, black #2 pencil. Make a heavy, full mark, but no stray marks. If you decide to change an answer, erase the unwanted mark very carefully. • Make no marks in the test booklet. Do all calculations on scratch paper provided by your instructor. • There is only one correct answer to each question. Any questions for which more than one response has been blackened will not be counted . • Your score is based solely on the number of questions you answer correctly. It is to your advantage to answer every question. 1. An atom of strontium–90 ( 90 38 Sr) contains (A) 38 electrons, 38 protons, 52 neutrons. (B) 38 electrons, 38 protons, 90 neutrons.
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This note was uploaded on 12/08/2010 for the course CHEM 1146 taught by Professor Staff during the Fall '08 term at Georgia Southern University .

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Practice Exam - General Chemistry Data Sheet ACS...

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