Chem 162 Spring 03, Test 1 (SG)

Chem 162 Spring 03, Test 1 (SG) - Chemistry 162SG Exam I...

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Chemistry 162SG Exam I February 14, 2003 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. At the end of the 80-minute exam period, please hand in only this top sheet and your OpScan form. 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 SOCIAL SECURITY NUMBER [Start under Box A and continue to Box I ] (c) Your RECITATION SECTION NUMBER (Boxes ) [Sections R1=51, R2=52, R3=53 (d) Your EXAM FORM NUMBER (Box P ) Your EXAM FORM is: c See last pages of exam for physical constants, periodic table, and other information. 162SG E1V1 SPRING “03” 1
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SPRING “03” 2 1. A cucumber is placed in a concentrated salt solution. What will most likely happen? A. Water will flow from the cucumber to the solution. B. Water will flow from the solution to the cucumber. C. Salt will flow into the cucumber. D. Salt will precipitate out. E. No change will occur. 2. Consider the following reaction: B r O 3 - + 5Br - + 6H + 3Br 2 + 3H 2 O If the rate of disappearance of Br - is 2.0 x 10 -3 mol/L.s at a particular instant, what is the rate of appearance of Br 2 at that instant? A. 1.2 x 10 -3 mol.L/s B. 6.0 x 10 -3 mol.L/s C. 3.3 x 10 -3 mol.L/s D. 3.3 x 10 -5 mol.L/s E. 2.0 x 10 -3 mol.L/s 3. Which one of the following pairs of dispersed substance and dispersing media don’t form a colloid? A.
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Chem 162 Spring 03, Test 1 (SG) - Chemistry 162SG Exam I...

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