Online Assignment 3

Online Assignment 3 - Maple T.A Gradebook CHEM 212 DE Fall...

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CHEM 212 DE, Fall 2008 : Gradebook System Homepage » Class Homepage » Student Details » Student Assignment Details Welcome Steve Lee-chem212-F08 [ My Profile ] Maple T.A. - Gradebook http://mapleta-mef.math.uwaterloo.ca:8081/mapleta/gradebook/gradebook.do (1 of 9) [05/12/2008 4:01:01 AM] Gradebook Help Logout Assignment detail for Steve Lee-chem212-F08 in On-line Assgt. 3 (Module 3): Steve Lee-chem212-F08 Login: ssilee Email: [email protected] ca Student ID: 20227515 Assignments completed: 5 Assignments active: 0 Question Grade 1 Apply the particle-in-a-box model to the electrons in the molecule below. H 2 C(CH) 16 CH 2 What wave length of light is required to cause a transition from the ground state to the first excited state? Assume that the electrons are confined to a one-dimensional box of length L, where L is given by the expression below. L = (9 r C=C + 9 r C-C ) sin(120) In the expression above, r C=C = 135 pm and r c-c = 154 pm. Enter your answer with three significant figures. Enter 1.23x10 -12 as 1.23e-12. Your Answer: 8.81E-7 m Instructors Comment: 1.0 2 If the electron in a hydrogen atom undergoes a transition from an n = 7 level to an n = 3 level, what is the wavelength of the radiation emitted? Give your answer accurate to three significant figures . Your Answer: 1.01E-6 m Instructors Comment: 1.0
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