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Exam 1_key - Chemistry 105 B Exam 1 02/05/09 Dr. Jessica...

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1 Chemistry 105 B PLEASE PRINT YOUR NAME IN BLOCK LETTERS Exam 1 Name: __________________________________ 02/05/09 Last 4 Digits of USC ID:____ ____ ____ ____ Dr. Jessica Parr Lab TA’s Name: _________________________________ Question Points Score Grader 1 12 2 9 3 9 4 12 5 8 6 12 7 9 8 8 9 9 10 12 Total 100 Please Sign Below: I certify that I have observed all the rules of Academic Integrity while taking this examination. Signature: _______________________________________________________________ Instructions: 1. You must show work to receive credit. 2. If necessary, please continue your solutions on the back of the preceding page (facing you). 3. YOU MUST use black or blue ink. (No pencil, no whiteout, no erasable ink.) 4. There are 10 problems on 12 pages. Please count them before you begin. A periodic table and some useful equations can be found on the last page. 5. Good luck!! =) First Letter of last Name
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2 1. (12 pt) Fill in the blanks in the following sentences. a. For a rate mechanism to be appropriate the rate law from the ___________________________ must match the experimentally determined rate law. b. The molecularity of the following elementary step is _____________________: 2 A (g) Æ B (g) + 2 C (g) c. The _____________________________ is the minimum amount of energy that must be overcome to produce a chemical reaction. d. A(n) _____________________________ catalyst is in the same state as the reactants. e. A(n) ______________________________ is produced in one elementary step and consumed in a subsequent step. f. In order for molecules to react they must overcome some minimum amount of energy as well as have the correct ____________________________ with respect to each other.
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3 2. (9 pt) Circle the correct answer for the following multiple choice questions. a. Determine the rate law for the following reaction based on the initial rate data provided. 2
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This note was uploaded on 02/17/2009 for the course CHEM 105B taught by Professor Bau during the Spring '08 term at USC.

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Exam 1_key - Chemistry 105 B Exam 1 02/05/09 Dr. Jessica...

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