MT3_2008_KEY

MT3_2008_KEY - Chemistry 1A, Spring 2008 Midterm Exam III,...

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Chemistry 1A, Spring 2008 Midterm Exam III, Version A April 14, 2008 (90 min, closed book) Name:____ KEY ___________ SID:____________________________ TA Name:_______________________ 1.) Write your name on every page of this exam. 2.) This exam has 15 multiple-choice questions and 3 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.) Select one answer for each multiple choice question. 5.) Show all work to receive credit on short answer questions. Question Page Points Score Multiple Choice 3-5 60 16) Phase Changes 6-7 14 17) Thermodynamics 8 14 18) Equilibria 9 12 Total 100
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Name_______________________________ Page 2 800 600 400 200 IR Red Green Blue UV Wavelength (nm) Color and Wavelength of Light G ° = H ° - T S ° H ° = Σ H ° f (products) - Σ H ° f (reactants) S ° = Σ S ° (products) - Σ S ° (reactants) G ° = Σ G ° f (products) - Σ G ° f (reactants) S = k B lnW Bond Order = (# of bonding electrons - # of anti- bonding electrons) ÷ 2 G ° = - RTln K R S T R H K ° + ° = 1 ln G ° = - nF Є º pX = - log X ] [ ] [ log HA A pK pH a + = Heat Capacity of H 2 O(l) = 4.184 Jg -1 K -1 Density of water = 1.00 g/mL For y = ax 2 +bx+c, x = b ± b 2 4 ac 2 a E = h ν λν = c λ deBroglie = h / p = h / mv E kin (e-) = h ν - Φ = h ν - h ν 0 = R n Z E n 2 2 E i f =− R 1 n f 2 1 n i 2 x p h/4 π p = mv Particle in a box (1-D Quantum): E n = h 2 n 2 /8mL 2 ; n = 1, 2, 3. .. 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 = 2.179874 x 10 -18 J R = 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 atm = 760 mmHg = 760 torr = 101,325 Pa 1 atm L = 101.3 J
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Name_______________________________ Page 3 Multiple Choice Questions (4 points each) 1) Which of the following gases would you expect to behave least like an ideal gas? A) He B) CO 2 C) H 2 O D) Xe E) Br 2 2) Using the diagram below, which of these is a plot of the vapor pressure of water vs. temperature? 3)
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This note was uploaded on 02/01/2011 for the course CHEM 1A taught by Professor Nitsche during the Spring '08 term at Berkeley.

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MT3_2008_KEY - Chemistry 1A, Spring 2008 Midterm Exam III,...

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