Chem 260 Final Exam Summer 2007a

Chem 260 Final Exam Summer 2007a - Chemistry 260 Final Exam...

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Chemistry 260 Final Exam Summer 2007 Page 1 of 16 Chem 260 Final Exam Summer 2007 Please write your answers in the green books provided. DO NOT WRITE ON THIS EXAM. Questions 1 and 2 are already in your exam booklet. For ease of marking and to maintain what little sanity I have left, please indicate if your answer continues on another page. All the information you need for the exam is either on the formula sheet or in your head. However, if you think I have left something out or don’t understand a question, please ask me, Jasroop, or Sudha. Don’t cheat. I don’t want to have to deal with the consequences and neither do you. The following information is required to appear on the exam by the department of chemistry. For a shorter version, see above. Good luck! There is high probability density that you know the answer to the question, within the boundary conditions imposed by the uncertainty principle… "Where shall I begin" he asked. "Begin at the beginning", the king said, "and stop when you get to an end." L. Carroll ( Alice in Wonderland ) In accordance with the Academic Honesty Policy (T10.10) academic dishonesty in any form will not be tolerated. Prohibited acts include, but are not limited to, the following: making use of any books, papers, electronic devices or memoranda, other than those authorized by the examiners. speaking or communicating with other students who are writing examinations copying from the work of other candidates or purposely exposing written papers to the view of other candidates.
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Chemistry 260 Final Exam Summer 2007 Page 2 of 16 Section 1: Mandatory Questions. Attempt all 6 questions. 70 points Question 1 (18 marks): The dreaded quantum numbers question. Fill in the blanks! a) The vibrational quantum number is represented by ________. The lowest value it can take is _____________. (1 mark) b) The principal quantum number is represented by __________. The lowest value it can take is 1, because otherwise we violate the _____________________________________ (name the theory, rule, or principle) because ______________________________________ ___________________________________________________________________________ _______________________________________________________________. (1.5 marks) c) The orbital angular momentum quantum number is represented by ________. The lowest value it can take is __________ because of its relationship to the ___________ quantum number, which is ______ = __________________________. (2 marks) d) The magnetic orbital angular momentum quantum number is represented by _______. This quantum number tells us __________________________________________________ __________________________________________________________________. (1 mark) e) The spin quantum number is represented by _________. For an electron, it may take on the values ________________. Although useful in quantum mechanics, spin has no classical analog because ______________________________________________________________ ___________________________________________________________________________ _______________________________________________________________. (1.5 marks) f) The electronic state of an atom can be described by its _________ symbol. This takes into account the coupling of ___________________ and ___________________________. We can use Russell-Saunders coupling if the atom ___________________________________ ___________________________________ otherwise we have to use __________________ coupling, which means instead of adding together the total ________________ and total ____________, we have to _________________________________________________ ___________________________________________________________________________ ________________________________________________________________. (4 marks) g) The rotational quantum number is represented by ______________. It is very useful in describing the transitions in Raman spectroscopy, where the Anti-Stokes lines are the transitions from _________________________, the Stokes lines are the transitions from ___________________________ and the Rayleigh line is __________________. (2 marks)
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Chemistry 260 Final Exam Summer 2007 Page 3 of 16 h) The nuclear spin angular momentum quantum number is represented by _______.
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