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exam final 1 - Name Section TA Chemistry 112 FINAL EXAM...

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Name _________________________ Chemistry 112 Section ____________ FINAL EXAM Total Points = 200 TA ___________________________ Thursday, 3:20 PM May 1, 2008 Directions: 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 on the answer sheet using an ordinary (#2) pencil. 4. CODE your correct 10-digit identification number (PUID) on the answer sheet. THIS IS VERY IMPORTANT! 5. CODE your lab section number on the answer sheet. Please use all four digits, 0101, 0102, 0201, etc. This is also very important! 6. Put all calculations on the examination pages. DO NOT PUT ANY EXTRA MARKS ON THE COMPUTER ANSWER SHEET! 7. This exam consists of 68 multiple-choice questions worth 2.94 points each. Choose the one best or correct answer for each question and write it both on your exam paper and on the computer answer sheet. The computer answer sheet is the only one that will be graded! 8. This exam consists of 15 pages plus a Periodic Table. Please check to be sure that you have them all! Useful information: Gas constant (R) = 0.0821 L atm mol 1 K 1 STP 273 K and 1 atm (760. torr) END OF EXAM 1) Please make sure that you have entered 68 answers on your scan sheet. 2) Make sure that you have entered your name, ID number, and lab section number (4 digits). 3) You MUST turn the scan sheet in to your TA before leaving the exam!
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Chem 112 – Final Exam – 05/01/08 2 _____ 1. Given a fixed quantity of gas at constant temperature, calculate the new volume if the pressure was changed as follows: Initial volume = 3.00 L, initial pressure = 2.00 atm, and final pressure = 5.00 atm. (a) 0.833 L (b) 1.20 L (c) 1.20 atm (d) 3.33 L (e) 0.333 L _____ 2. What pressure is required to compress 925 L of N 2 at 1.25 atm into a container whose volume is 6.35 L? (a) 6.35 atm (b) 5.49 atm (c) 182 atm (d) 925 atm (e) 4699 atm _____ 3. Which of the following species could not act as a Brønsted-Lowry acid? _____ 4. If 79.0 L of He at 27.0 ° C is compressed to 32.0 L at constant pressure, what is the new temperature? _____ 5. A 6.25 L sample of gas exerts a pressure of 1.46 atm at 25°C. What would the pressure of this gas sample be at 298 K if it were compressed to a volume of 5.05 L?
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Chem 112 – Final Exam – 05/01/08 3 _____
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