Spring 2008 - Nitsche (not on bspace)

Spring 2008 - Nitsche (not on bspace) - Chemistry 1A,...

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Chemistry 1A, Spring 2008 Final Exam, Version A May 17, 2008 (180 min, closed book) Name:__________________________ SID:____________________________ TA Name:_______________________ 1) Write your name on every page of this exam. 2) This exam has 25 multiple-choice questions and 5 short answer questions. Fill in the Scantron form AND circle your answer on the exam. 3) There is no penalty for guessing, so answer every question. 4) Some questions require selecting multiple answers for credit. These questions clearly state ±Mark all that apply². 5) Show all work to receive credit on short answer questions. Question Page Points Score Multiple Choice 3-7 200 26) Reactions and Thermo 8 26 27) Chemical Properties 9-10 35 28) Acid-Base Chemistry 11 24 29) Hydrogen Fuel Cell 12-13 35 30) Nuclear Chemistry 14-15 30 Total 350
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Page 2 of 15 800 600 400 200 IR Red Green Blue UV Wavelength (nm) Color and Wavelength of Light ' G q = ' H q - T ' S q ' H q = 6 ' H q f (products) - 6 ' H q f (reactants) ' S q = 6 S q (products) - 6 S q (reactants) ' G q = 6 ' G q f (products) - 6 ' G q f (reactants) S = k B lnW ' G q = - RTln K R S T R H K q ' ± q ' ² 1 ln ' G q = - nF ' ȯ º pX = - log X ] [ ] [ log HA A pK pH a ² ± Heat Capacity of H 2 O(l) = 4.184 Jg -1 K -1 Density of water = 1.00 g/mL N t = N 0 e - O t t 1/2 = ln(2)/ O For y = ax 2 +bx+c, x ² b r b 2 ² 4 ac 2 a Standard Reduction Potentials E°(V) Cl 2 (l) + 2e- o 2Cl-(aq) 1.36 Br 2 (l) + 2e- o 2Br-(aq) 1.09 Ag + (aq) + e- o Ag(s) 0.80 Cu 2+ (aq) + 2e- o Cu(s) 0.34 2H + (aq) + e- o H 2 (g) 0.00 Pb 2+ (aq) + 2e- o Pb(s) -0.13 Sn 2+ (aq) + 2e- o Sn(s) -0.14 Ni 2+ (aq) + 2e- o Ni(s) -0.23 Co 2+ (aq) + 2e- o Co(s) -0.28 Cd 2+ (aq) + 2e- o Cd(s) -0.40 Zn 2+ (aq) + 2e- o Zn (s) -0.76 Li + (aq) + e- o Li(s) -3.04 E = mc 2 E = h Q OQ = c O deBroglie = h / p = h / mv E kin (e-) = h Q - ) = h Q - h Q 0 f ² R n Z E n 2 2 E i o f ² R f 1 n f 2 ² 1 n i 2 § © ¨ ¨ · ¹ ¸ ¸ ¨ x ¨ p ± h/4 S p = mv PV = constant PV = nRT RT E kin 2 3 M 3RT v rms ' E = q + w w = - P ext ' V ' E 3 2 nR ' T N 0 = 6.02214 x 10 23 mol -1 R f = 2.179874 x 10 -18 J R f = 3.28984 x 10 15 Hz k = 1.38066 x 10 -23 J K -1 h = 6.62608 x 10 -34 J s m e = 9.101939 x 10 -31 kg c = 2.99792 x 10 8 m s -1 Gas Constant: R = 8.31451 J K -1 mol -1 R = 8.20578 x 10 -2 L atm K -1 mol -1 T (K) = T (C) + 273.15 F = 96,485 C / mol 1 V = 1 J / C 1 nm = 10 -9 m 1 kJ = 1000 J 1 J = kg m 2 s -2 1 atm = 760 mmHg = 101,325 Pa 1 atm L = 101.3 J
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Page 3 of 15 Multiple Choice Questions (8 points each) 1) In lab, the reaction of acetic acid and sodium bicarbonate produced CO 2 (g) to inflate your airbag. CH 3 COOH(aq) + NaHCO 3 (s) o CH 3 COO - Na + (aq) + CO 2 (g) + H 2 O(l) If 53 g of CH 3 COOH(aq) is mixed with NaHCO 3 (s) to produce 7.2 g of water, what is the limiting reactant? A)
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This note was uploaded on 05/04/2011 for the course CHEMISTRY 1A taught by Professor Nitsche during the Spring '10 term at University of California, Berkeley.

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Spring 2008 - Nitsche (not on bspace) - Chemistry 1A,...

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