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Exam_3_practice_2010

# Exam_3_practice_2010 - CHEM 222 Fall 2009(Exam#3 You have...

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CHEM 222, Fall 2009 (Exam #3) You have 50 min in which to take this exam. It is a closed book exam; only calculators are allowed. Show all of your work. Physical Constants (not all need to be used) c = 2.998 × 10 8 m/s h = 6.626 × 10 -34 J × s J = N m = kg m 2 /s 2 1 eV = 1.602 x 10 -19 J Atomic mass unit, u = 1.660 x 10 -27 kg; Mass of an electron, 9.11 x 10 -28 g

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Problem # 1 (12 pts) (A) Calculate the de Broglie wavelength of an electron with a velocity of 6.00 x 10 6 m/s. (B) Using the de Broglie equation, calculate the mass of a “blue” photon, λ = 400 nm.
Problem #2 (18 pts) Complete the following table (show the equations you use). Type of Spectroscopy Wavelength Frequency, Hz Wavenumber, cm -1 Energy, eV Vacuum UV 175 nm UV-Vis 780nm Infrared 300 μ m

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Problem # 3 (15 pts) A Raman spectrum of a compound was taken with 488.0 nm excitation radiation, and a strong line was found at 512.83 nm. From this information, give the wavelength (in nm) and in wavenumber (in cm -1 ) of the anti-Stokes line.
Problem #4 (25 pts) (A) Examine the diagram below for a photoluminescent experiment. In the Table below, name the processes from 1 to 7 and A, F and P.

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Exam_3_practice_2010 - CHEM 222 Fall 2009(Exam#3 You have...

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