winter 08 exam 3

winter 08 exam 3 - CHEM 102 Winter 08 Exam 3 On the answer...

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CHEM 102 Winter 08 Exam 3 On the answer sheet (scantron) write your Name, Student ID Number, and Recitation Section Number. Choose the best (most correct) answer for each question AND ENTER IT ON YOUR ANSWER SHEET. Potentially useful information: a c a b b x 2 4 2 ± = [ ] [] acid base pK pH a log + = 1. Starting with a saturated solution of sodium chloride in water at room temperature, adding solid sodium chloride will a. increase the concentration of the solution. b. decrease the concentration of the solution. c. increase the anion concentration and decrease the cation concentration of the solution d. have no effect on the concentration of the solution ANSWER: d 2. Which pair of compounds below would be miscible? a. HF and C 8 H 18 b. CH 3 OH and H 2 O c. H 2 O and CH 3 (CH 2 ) 10 COOH d. H 2 SO 4 and CCl 4 ANSWER: b 3. Which of the following can act as a Bronsted-Lowry base, but not as a Bronsted-Lowry acid? a. H 2 O b. NH 4 + c. PO 4 3 - d. HSO 4 - ANSWER: c 4. Which of the following is not a conjugate acid-base pair? a. CH 3 COOH and CH 3 COO - b. CH 3 NH 3 + and CH 3 NH 2 c. H 2 SO 3 and SO 3 2 - d. HCOOH and HCOO - ANSWER: c Page 1 of 5
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5. Methylamine, CH 3 NH 2 , acts as a weak base in water. The products of the reaction are _____ and _____. a. OH
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This note was uploaded on 05/13/2008 for the course CHEM 102 taught by Professor Multipleprofs during the Winter '08 term at Drexel.

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winter 08 exam 3 - CHEM 102 Winter 08 Exam 3 On the answer...

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