practiceexam19 - City College Chemistry Department...

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City College, Chemistry Department Chemistry 10301, sections T, T2, Τ 3, Prof. T. Lazaridis Third Midterm exam, Nov 29, 2007 Name (last name first): ____________________________________ I.D. Number last 4 : _______________________________________ Workshop leader: ________________________________________ Note: There are 11 questions in this exam. Fill in your answer in the blank space provided immediately following each question. 1/2 point will be subtracted every time you report a numerical result with an incorrect number of significant figures. Useful data: Speed of light : 2.9979 X 10 8 m/s Planck's constant : 6.626 X 10 -34 Js E n = -2.179 X 10 -18 J/n 2 1. (4) Which of the following symbols represent possible orbitals, and which do not? Explain what is wrong with each incorrect symbol. a) 2s possible b) 3p possible c) 2d impossible (n=2, l=2) d) 3g impossible (n=3, l=4) 2. (6) The human eye can detect 3.15 X 10 -17 J of 510-nm radiation. How
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practiceexam19 - City College Chemistry Department...

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