161SG_Exam_II_Fall_2007 - Chemistry 161SG Exam II October...

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161SG EXAM II V1 1 FALL “07” Chemistry 161SG Exam II October 19, 2007 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 ) [Sections R1=51, R2 = 52, R3=53, R4=54, R5=55, R6=56 (d) Your EXAM FORM NUMBER (Box P ) Your EXAM FORM is: See last pages of exam for physical constants, periodic table, and other information.
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161SG EXAM II V1 2 FALL “07” 1. If the concentration of Na + in an aqueous solution of sodium sulfate is 3.2 x 10 -1 mol/L, how many moles of sodium sulfate must have been dissolved per liter to make the solution? A. 3.2 x 10 -1 B. 1.6 x 10 -1 C. 6.4 x 10 -1 D. 1.1 x 10 -1 E. 9.6 x 10 -1 2. Which of the following is incorrectly labeled? A. KCl - strong electrolyte B. HCl - strong electrolyte C. HCOOH - weak electrolyte D. NH 3 - weak electrolyte E. HNO 2 - strong electrolyte 3. A 25.00 mL sample of an aqueous solution of Ba(OH) 2 requires 18.45 mL of 0.01500 M HCl(aq) for its neutralization. What is the molarity of the Ba(OH) 2 solution? A.
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This note was uploaded on 03/12/2009 for the course CHEM 161 taught by Professor Vacillian during the Spring '08 term at Rutgers.

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161SG_Exam_II_Fall_2007 - Chemistry 161SG Exam II October...

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