6 Week Chem Exam

6 Week Chem Exam - SC112 6-week Common Exam Name Alpha United States Naval Academy Chemistry Department SC112 Foundations of Chemistry 6-Week

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SC112 – 6-week Common Exam Name:_____________________________ Alpha:____________ United States Naval Academy Chemistry Department SC112: Foundations of Chemistry 6-Week Examination Spring 2007 Instructions 1. DO NOT open this exam until told to do so. 2. On the top of all pages , write your name, section number, and alpha number. 3. On the scantron sheet , write your name, section number, instructor's name, and alpha number. Also, bubble in your alpha number. 4. There are 4 pages to this exam (including this cover sheet). The exam contains 25 multiple choice questions. Select the best answer and record it on the exam and on the scantron sheet. There is no penalty for guessing. 5. Periodic Table, constants, and equations are on the back of this cover sheet. 6. Read the following statement: This exam will be given to all SC111 students over the period 14 February to 15 February. In order to ensure a fair exam and be consistent with the USNA policies concerning graded academic work, you are not allowed to discuss any aspect of this exam (format, length, content, etc.) until 20 February .
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SC112 – 6-week Common Exam Name:_____________________________ Alpha:____________ Periodic Table of the Elements N A = 6.02214 x 10 23 mol – 1 R = 0.08206 L atm mol – 1 K – 1 R = 8.314 J mol – 1 K – 1 for the reaction, aA + bB cC + dD rate = _ 1 [A] = _ 1 [B] = 1 [C] = 1 [D] S g = k H P g a t b t c t d t mass fraction = mass solute ln[A] t = kt + ln[A] o total mass of soln 1 = kt + 1 weight percent = mass fraction x 100% [A] t [A] 0 ppm = mass solute x 10 6 t 1/2 = 0.693 t 1/2 = 1 total mass of soln k k[A] o molarity (M) = moles solute k = Ae Ea/RT ln k = (E a /R)(1/T) + ln A Liters of soln ln (k 1 /k 2 ) = E a [(1/T 2 ) (1/T 1 )] molality (m) = moles solute R kg solvent A = log(%T/100) A = ε cl P 1 = X 1 P o 1 for the reaction aA + bB cC + dD T b = K b m solute i solute K c = [C] c [D] d K p = (P C ) c (P D ) d K p = K c (RT) n [A] a [B] b (P A ) a (P B ) b T f = K f m solute i solute Π = cRTi
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SC112 – 6-week Common Exam Name:_____________________________ Alpha:____________ 1. In the reaction 2 NO 2 (g) 2 NO (g) + O 2 (g) at 300.0 o C, [NO 2 ] drops from 0.01000 to 0.00650 M in 100 s. The average rate of appearance of O 2 for this period is _________. a. 0.0000175 M s - 1 b. 0.0000350 M s - 1 c. 0.0000700 M s - 1 d. 0.00350 M s - 1 2 . What is the rate law for the reaction of hydrochloric acid (HCl) with propene (CH 3 CHCH 2 ), given the following data : HCl + CH 3 CHCH 2 CH 3 CHClCH 3 initial [HCl] (M) initial [CH 3 CHCH 2 ] o (M) Rate (Ms - 1 ) 1.8 x 10 5 1.1 x 10 5 2.0 x 10 7 3.6 x 10
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This test prep was uploaded on 04/07/2008 for the course CHEM 101 taught by Professor Schroeder during the Spring '08 term at Naval Academy.

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6 Week Chem Exam - SC112 6-week Common Exam Name Alpha United States Naval Academy Chemistry Department SC112 Foundations of Chemistry 6-Week

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