163Exam2KeyF09

163Exam2KeyF09 - Dr. Jesudoss Kingston Dr. Joe Burnett Fall...

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Unformatted text preview: Dr. Jesudoss Kingston Dr. Joe Burnett Fall 2009 This exam consists of 23 questions on 8 pages CHEM 163 Exam II October 7, 2009 Name______________________ Recitation TA ______________ Recitation Section ___________ Grading Teaching Assistants and Recitation Sections Page Points Score Name Sections Time 2 3 4 5 6 7 TOTAL 10 pts 22 pts 18 pts 30 pts 16 pts 8 pts 104 pts ________ ________ ________ ________ ________ ________ Alyssa Capper T. J. Clark Chamila Liyanage Kyle Marchuk Rajarshi Roy Choudhury T-Purnima Ruberu Selena Russell Anthony Stender Nishad Thamban Chandrika Lakmini Widanapathirana 1 5 4 25 20, 24 2, 6 9, 21 7, 8 3, 22 23 9:00 11:00 10:00 3:10 9:00, 10:00 9:00, 12:10 3:10, 1100 1:10, 2:10 10:00, 12:10 1:10 Questions are written on both sides of each page. There is a periodic table and important information on the last page. You may remove this page for scratch paper. Show all work. Answers should include appropriate units and contain the correct number of significant figures. Answer Key 2 1. (2 pts) Indicate which one of the following volumes are quantized. a) water dispensed from a drinking fountain b) water flowing out of a hose c) soda in a 1-Liter bottle d) soda from a soda dispenser e) none of the above represent quantized volumes 2. (2 pts) What is the elemental symbol for the element with the following condensed electron configuration? _______________ [Kr] 4d 5 5s 2 3. (6 pts) What is the wavelength in nm of yellow light with a photon energy of 3.50 × 10 –19 J? For full credit, show all work, include units, and report your answer to the correct number of significant figures. E = h ν ν = E h = 3.50 × 10 –19 J 6.63 × 10 –34 J s = 5.27 9 × 10 14 Hz c = λ ν λ = c ν = 3.00 × 10 8 m s 5.27 9 × 10 14 /s = 5.68 × 10 –7 m 5.68 × 10 –7 m ⎝ ⎜ ⎛ ⎠ ⎟ ⎞ 10 9 nm 1 m = 568 nm (3 sig figs) alternatively: E = h c λ λ = h c E = 6.63 × 10 –34 J s × 3.00 × 10 8 m s 3.50 × 10 –19 J = 5.68 × 10 –7 m 5.68 × 10 –7 m ⎝ ⎜ ⎛ ⎠ ⎟ ⎞ 10 9 nm 1 m = 568 nm (3 sig figs) Note that this is the same question as 4.3 in the text....
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This note was uploaded on 02/06/2012 for the course CHEM 163 taught by Professor Christinabonaccorsi during the Spring '08 term at Iowa State.

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163Exam2KeyF09 - Dr. Jesudoss Kingston Dr. Joe Burnett Fall...

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