CHEM 2B Final Exam Winter06

CHEM 2B Final Exam Winter06 - Name_ Student ID Number_ LAB...

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Name__________________________________________________ Student ID Number_______________________________________ LAB Sec. # _____; TA: ____________; Lab day/time: __________ Dr. Bryan Enderle Winter 2006 CHEMISTRY 2B (Sec. A) Final Exam Instructions: CLOSED BOOK EXAM ! No books, notes, or additional scrap paper are permitted. All information required is contained on the exam. Place all work in the space provided. If you require additional space, use the back of the exam. A scientific calculator may be used. (1) Read each question carefully. (2) For Parts I and II , there is no partial credit given and only answers marked on this cover page will be graded . (3) The last page contains a periodic table and some useful information. You may remove it for easy access. (4) If you finish early, RECHECK YOUR ANSWERS! (5) Circle your choice on the right for the multiple choice questions 1 – 20. U.C. Davis is an Honor Institution Possible Points Points #1–12. (3 points each) / 36 #13-20. (6 points each) / 48 #21. (50 points) / 50 #22. (15 points) / 15 Total Score (149) /1.49 = % Multiple Choice (circle one) 1. A B C D E 2. A B C D E 3. A B C D E 4. A B C D E 5. A B C D E 6. A B C D E 7. A B C D E 8. A B C D E 9. A B C D E 10. A B C D E 11. A B C D E 12. A B C D E 1-12 total pts: 13. A B C D E 14. A B C D E 15. A B C D E 16. A B C D E 17. A B C D E 18. A B C D E 19. A B C D E 20. A B C D E 13-20 total pts:
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Final Exam Page 2 of 14 Initial:___________ Part I: Multiple Choice, Concepts Circle the correct answer and circle your response on the cover – No partial credit 1. (3 pts) Which of following scenarios would cause a system to be spontaneous? A. H > 0, S < 0, K > 1 B. H < 0, S > 0, K > 1 C. H < 0, S < 0, T < 0 D. H > 0, S > 0, K < 1 E. All of the above 2. (3 pts) Which of the following compounds will increase the solubility of PbS(s) in water? A. KCl B. NaOH C. HCl D. H 2 O E. Any organic molecule 3. (3 pts) Select the true statement. A. The value of pK a changes with the concentration of the corresponding weak acid. B. The value of pH changes with the concentration of weak acid. C. The values pH and pK a of a weak acid are generally the same. D. Adding a strong base to a weak acid increases the pK a of the weak acid. E. When titrating a weak acid with a strong base, the pH decreases as more base is added.
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This note was uploaded on 10/22/2010 for the course CHE CHE 2B taught by Professor Toupadakis during the Fall '09 term at UC Davis.

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CHEM 2B Final Exam Winter06 - Name_ Student ID Number_ LAB...

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