115 Final (A1) Fall 2009

115 Final (A1) Fall 2009 - Test Form E3 Name _ Section _ TA...

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Test Form E3 Name _________________________ Chemistry 115-A Section ____________ FINAL EXAM Total Points = 210 TA ___________________________ Tuesday, 8:00 AM December 15, 2009 THIS EXAM IS FOR STUDENTS WITH MONDAY-FRIDAY 3:30 LECTURE. YOU SHOULD HAVE A RED COMPUTER ANSWER SHEET! 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 section number on the answer sheet. Please use all four digits, 0101, 0102, 0201, etc. This is also very important! 6. CODE the test number shown in the upper right-hand corner of this page onto the answer sheet in the block labeled “Test Form” under the Date line at the top right-hand side. This is Test Form E3. 7. Put all calculations on the examination pages. DO NOT PUT ANY EXTRA MARKS ON THE COMPUTER ANSWER SHEET! 8. This exam consists of 40 multiple-choice questions worth 5.25 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! 9. This exam consists of 12 pages plus a Table of Useful Information, a Periodic Table and a sheet of scratch paper. Please check to be sure that you have them all! KEEP YOUR ANSWERS AND WORK COVERED TO PROTECT THE INTEGRITY OF YOUR WORK!!
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115-A − Final Exam (Test E3) − 12/15/09 _____ 1. Greenhouse gases modeled as contributing to global warming do so because they absorb in the IR-region of the electromagnetic spectrum. Which of the following gases would NOT be considered a greenhouse gas? (a) CO 2 (b) CO (c) CH 4 (d) H 2 O (e) He _____ 2. How many nanometers are there in 0.0200 picometers? (a) 2.00 x 10 −23 nm (b) 2.00 x 10 −5 nm (c) 2.00 x 10 −3 nm (d) 2.00 x 10 1 nm (e) 2.00 x 10 3 nm _____ 3. A 22.0 g sample of potassium sulfate, K 2 SO 4 , contains how many moles of potassium ions? (a) 0.126 mol (b) 0.253 mol (c) 9.85 mol (d) 4.92 mol (e) 0.229 mol _____ 4. Carbon -12, nitrogen-14 and oxygen-16 are stable isotopes. One should then conclude that radioactive nitrogen-12 will decay by: (a) beta decay (b) alpha decay (c) positron decay (d) fission (e) fusion _____ 5. What happens to the value of A (the mass number) and Z (the atomic number) of a nucleus as it undergoes electron capture? (a) A and Z both increase (b) A and Z both decrease (c) A increases and Z decreases (d) A stays the same, Z increases (e) A stays the same, Z decreases 2
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115-A − Final Exam (Test E3) − 12/15/09 _____ 6. When one mole of 2 H is fused to form one-half mole of 4 He, the total energy evolved is 1.143 x 10 9 kJ. What is the total change in mass for this reaction? (a) 0.127 kg
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115 Final (A1) Fall 2009 - Test Form E3 Name _ Section _ TA...

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