Chemistry_161SG_Exam_II_V1_Fall_2009

Chemistry_161SG_Exam_II_V1_Fall_2009 - Chemistry 161 Solid...

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Chemistry 161 Solid Gems Exam II Date: 10/16/09 Student Name: _____________________ Recitation Section Number: ____ Recitation Instructor: _________________________ The exam has 25 questions for credit and an additional one to check the color of your exam booklet. Please answer all 26 questions on the OpScan sheet. There is no penalty for guessing. If you finish early, please do not disturb your fellow students. A proctor will check your picture-ID, OpScan form and signature during the exam. Exam scores and an exam curve will be posted as soon as possible. ON THE OpScan FORM: (Use a Number 2 Pencil or Darker) (1) SIGN your name across the TOP of the form. (2) code only the following information: [ blacken circles] (a) Your Name . . . LAST NAME FIRST [ blank space between last and first names ] (b) Your RUTGERS ID NUMBER [Start under Box A and continue to Box I ] (c) Your RECITATION SECTION NUMBER (Boxes K & L ) [Sections R1=51, R2 = 52, R3=53, R4=54, R5=55, R6=56 (d) Your EXAM FORM NUMBER (Box P ) Your EXAM FORM is: c Sec. Pr. Inst. R1 3 DC R2 4 DC R3 4 NM R4 5 YC R5 6 YC R6 6 JW See last pages of exam for physical constants, periodic table, and other information. 161SG EXAM II V1 FALL 2009 1
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1. Which one of the following 0.10M aqueous solutions is a weak electrolyte? A. KOH B. HClO 4 C. CH 3 OH D. LiCl E. HNO 2 2. Which one of the following is a redox reaction? A. H 2 O( l ) H + ( aq ) + OH - ( aq ) B. K 2 Cr 2 O 7 ( aq ) + 2KOH( aq ) 2K 2 CrO 4 ( aq ) + H 2 O( l ) C. Na 2 CO 3 ( s ) + 2HCl( aq ) 2NaCl( aq ) + CO 2 ( g ) + H 2 O( l ) D. Ba 2+ ( aq ) + SO 4 2- ( aq ) BaSO 4 ( s ) E. 2Na( g ) + Cl 2 ( g ) 2NaCl( s ) 3. A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 Torr. The balloon must be cooled to __________°C to reduce its volume to 3.78 L (at constant pressure). A. 38 B. 273 C. 72.9 D. 546 E. 0 4. Of the following, only __________ is impossible for an ideal gas.
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Chemistry_161SG_Exam_II_V1_Fall_2009 - Chemistry 161 Solid...

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