Practice Exam 3 Key

Practice Exam 3 Key - Chemistry 105 A Exam 3 04/01/08 Dr....

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1 Chemistry 105 A PLEASE PRINT YOUR NAME IN BLOCK LETTERS Exam 3 Name: __________________________________ 04/01/08 Last 4 Digits of USC ID:____ ____ ____ ____ Dr. Jessica Parr Lab TA’s Name: _________________________________ Lab: W 1 / W 4 / Th 9 / Th 1 / Th 4 Please circle lab section above . Question Points Score Grader 1 28 2 10 3 8 4 16 5 8 6 10 7 5 8 5 9 10 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 9 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. (22 pt) Answer the following multiple choice or short answer questions. (a) What is the maximum number of electrons in an atom that can have these quantum numbers? (i) n = 6, l = 2 __________ (ii) n = 8, l = 3, m s = + ½ __________ (iii) n = 1, l = 1, m l = 0 __________ (iv) n = 3, l = 2, m l = 0 __________ (b) Match the equation with the correct process: (i) X (g) + e - Æ X - (g) (ii) X (g) Æ X 2+ (g) + 2 e - (iii) X + (g) Æ X 2+ (g) + e - (iv) X (g) Æ X - (g) + e - (v) X (g) Æ X + (g) + e - (vi) X - (g) Æ X (g) + e - First Ionization Energy ___________ Second Ionization Energy ___________ Electron Affinity ___________ (c) If n = 9, what are the possible values of l ? ______________________________________________________________________ (d) If
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Practice Exam 3 Key - Chemistry 105 A Exam 3 04/01/08 Dr....

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