Exam_practicefinal1

Exam_practicefinal1 - Name Signature T.A name CHEMISTRY 114...

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1 Name CHEMISTRY 114 Spring, 2003 Signature T.A. name FINAL EXAM Monday, May 12, Version STUDENT AFFILIATE # 1. Each student is responsible for following directions. Read this page carefully. 2. Write your name and other requested information on this page and on the separate answer sheet. 3. CODE your name, LAST (FAMILY) NAME first on the answer sheet using an ordinary (#2) pencil. 4. your correct identification number (student affiliate ID 10 digits) on the answer sheet. This is very important! 5. Put all calculations on the examination pages. DO NOT PUT ANY EXTRA MARKS ON THE COMPUTER ANSWER SHEET! 6. This exam consists of 50 multiple-choice questions worth 4 points each plus one bonus question. Choose the one best or most correct answer for each question and write it both on your exam paper and on the computer answer sheets. The computer answer sheet is the only one that will be graded! 7. This exam consists of 12 pages INCLUDING THIS page and a periodic table. Please check to be sure that you have them all! Useful Information: Ideal gas constant, R = 8.314 J mol -1 K -1 = 8.205 x 10 -2 liter atm mol -1 K -1 Molar volume of ideal gas at STP = 22.41 liter mol 1 litre- atmosphere = 101.3 J 760 torr = 1 atm pressure Formula for hydrogen emission spectrum 1/ λ = R nn fi 11 22 where R = 1.097 x 10 7 x m –1 T = t + 273.15 PV = nRT ∆ Ε = q + w G = H – T S G ° = -RT ln K K P = K c x (RT) n(gas)
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2 PART A: MATERIAL SINCE LAST EXAM 1. The stable structure of iron at standard temperature and pressure is: A. simple cubic D. tetragonal close-packed B. HCP E. BCC C. FCC 2 and 3. Refer to the accompanying phase diagram for the following two questions. 2. At (or between) which tempererature(s) will the solid solution have the composition 20% B? A. 610 o C D. 550 o C 550 o C and 300 o CE . 440 o C 550 o C and 610 o C 3. Which of the following correctly describes the phases present in region "a"? A. homogeneous liquid solution and solid B eutectic and solid B homogeneous solid solution and homogeneous liquid solution D. solid solution of B in A homogeneous liquid solution 4. A mild steel contains 0.30 wt % C. What is the mole % of carbon in mild steel? A. 0.025 D. 0.30 B. 17.8 E. 1.1 1.4
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3 5. Which of the following molecules is an amine? A. CH 3 CH 2 CN D. C 6 H 5 NO 2 B. CH 3 CH 2 CH 2 2 E. CH 2 CH CN C. C 6 H 5 NH 2 6. Which of the following is the chemical link established in the formation of an ester from an acid and an alcohol? CCOC O CCCC CC NC Cl CCNC OH 7. For the reaction system: Co O (s) + H 2 (g) Co (s) + H 2 O(g) at 550 ° C, K = 67. The equilibrium constant expression is: CoO H Co H O [] [ ] [ ] 2 2 H HO 2 2 Co H O CoO H [ ] 2 2 H 2 2 Co H O H 2 2
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4 8. Which of the following is not a natural polymer?
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Exam_practicefinal1 - Name Signature T.A name CHEMISTRY 114...

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