161+Final+Exam+V1+SP+09-1

161+Final+Exam+V1+SP+09-1 - Chemistry 161 Final Exam May 7...

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Chemistry 161 Final Exam May 7, 2009 Student Name (Print): ______________________________ Student Signature: ____________________________________ Recitation Section Number: FF Recitation Instructor: __________________ The exam booklet has 50 questions for credit and one additional question to check the color of your exam booklet. Please answer all 51 questions on the OpScan sheet. There is no penalty for guessing. Answer each question with the best choice from those provided. At the end of the 180-minute exam period, please hand in only this top sheet and your OpScan form. Please be sure to sign your name above your printed name on the Opscan form. If you finish early, please do not disturb your fellow students. A proctor will check your picture ID, OpScan form, signature and calculator during the exam. The use of calculators with permanent memories (graphing calculators), cell phones, pagers, PDAs or other electronic devices other than a basic scientific calculator is expressly forbidden. The last page of the booklet contains a periodic table along with other useful data. The use of any other notes or information on this test will be considered a violation of the Academic Honesty provisions of the student code. Exam scores will be posted as soon as possible. ON THE OpScan FORM (Use a #2 pencil or darker) Sec Per. Instr 1. SIGN your name across the top of the form. 01 T6 NM 2. Code the following information ( blacken circles) 02 T6 LK Your Name (LAST NAME FIRST) 06 Th6 EC Your RU ID 07 Th6 LK [Start under Box A and continue to Box I ] 11 T8 NM 3. Your RECITATION SECTION NUMBER in K & L 12 T8 EC [Sections 01-08, code a 0 under box K ] 13 Th8 EC 4. Your EXAM FORM NUMBER under box P 15 Th8 LK NM = Nancy Marky, LK = Lauren Klein, EC = Erkan Ciftlikli Periods: 6 = 5:50 -6:45, 8 = 8:45-9:40 Your EXAM FORM is: c 161 FINAL EXAM V1 SPRING 2009 1
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161 FINAL EXAM V1 SPRING 2009 2 BEFORE STARTING THE EXAM PUT YOUR FORM # IN COLUMN P AND YOUR SECTION # IN COLUMN K AND L ON THE SCANTRON. ALSO DARKEN THE CIRCLES PLEASE. 1. Oxygen in spaceships in produced by the following reaction: 2KClO 3 (s) 2KCl(s) + 3O 2 (g). What volume of O 2 at a temperature of 25.0 °C and a pressure of 1.00 atm is produced from the decomposition of 7.5g of KClO 3 ? (Molar Mass of KClO 3 = 122.6 g/mol). A. 4.5L B. 7.5L C. 2.2L D. 3.7L E. 11L 2. When the following skeletal reaction is balanced, what is the sum of the coefficients? AgNO 3 (aq) + H 2 SO 4 (aq) Ag 2 SO 4 (s) + HNO 3 A. 3 B. 4 C. 5 D. 6 E. 7 3. A stock solution of NaCl is made by taking 150.2g in enough water to make 200.0mL. A 10.00 mL sample of this stock solution is diluted to 250.00 mL. What is the concentration of the final solution? (Molar Mass of NaCl=58.5 g/mol). A. 0.514M B. 12.8M C. 5.14×10 -4 M D. 0.0300M E. 0.300M
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161 FINAL EXAM V1 SPRING 2009 3 4. What is the actual yield when 500.0g of H 2 and 500.0g of N 2 are allowed to react, with a % yield of 85.0%? 3H 2 (g) + N 2 (g) 2NH 3 (g) A. 607.9g B. 515.7 g C. 2.394kg D. 3.313kg E. Cannot be determined based on this data 5. Which pair of solutions will not produce a precipitate?
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This note was uploaded on 11/12/2011 for the course CHEM 160:261 taught by Professor Staff during the Fall '10 term at Rutgers.

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161+Final+Exam+V1+SP+09-1 - Chemistry 161 Final Exam May 7...

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