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Unformatted text preview: Version A (White) CHEMISTRY 115 Exam 4 Version A (White) Dr. T.R Chigwada April 19, 2007 An optical scoring machine will grade this examination. The machine is not programmed to accept the correct one of two or more sensed answers and will not sense answers that are lightly marked. Mark your sheet carefully with a No. 2 soft lead pencil and erase any undesired marks COMPLETELY . Avoid making any extraneous marks on the answer sheet other than the information mentioned below. On the answer sheet: 1. Print your name in the space for NAME (last name first, CIRCLE your last name). 2. In the space marked SUBJECT write Chem 115. 3. In the space marked TEST NO. write Exam 4. 4. In the space DATE write Spring 2007 5. In the space marked PERIOD write your instructor and section number: CHIG-003 (T, Th lecture) or CHIG-005 (M,W,F lecture). 5. Check to see that you have 21 examination questions, a periodic table, and a scantron with NO mark in the upper right hand corner. Hand in only the SCANTRON answer sheet!! Some useful Constants and Conversions C(H 2 O (l) ) = 4.184 J/g.C N A = 6.0220 x 10 23 Plancks constant, h = 6.626 x 10-34 J.s Speed of light, c = 2.998 x 10 8 m/s Relax and Good Luck!!!!! Version A (White) CHEMISTRY 115 Exam 4 Version A (White) CHOOSE THE ONE BEST ANSWER 1. Given the following sets of quantum numbers for n l m l m s , which one of these sets is not a possible set for an electron in an atom? n l m l m s A) 4 2 2 B) 3 1 1 1 C) 4 3 2 D) 4 3 2 E) 5 2 2 2. A correct description for the ground state configuration of the iron atom is A) [Ar] 3s 2 3d 6 , paramagnetic B) [Ar] 4s 2 3d 6 , diamagnetic C) [Ar] 4s 1 3d 7 , paramagnetic D) [Ar] 3d 8 , paramagnetic E) [Ar] 4s 2 3d 6 , paramagnetic 3. A student drew four possible Lewis structures for HBrO 4...
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This note was uploaded on 04/26/2008 for the course CHEM 115 taught by Professor Chigwada during the Spring '07 term at WVU.
- Spring '07