CHM 131 - Exam2 - 2004

CHM 131 - Exam2 - 2004 - ROCHESTER 26 October 2004...

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Chemistry 131 – Preliminary Exam II 26 October 2004 8:00 a.m. to 9:30 a.m. Name: ________________________ ID #: ________________________ Workshop Meeting Time (day and hour) ________________________ (2 pts. Extra credit) This exam consists of six (6) questions, one extra credit problem, and a page of potentially useful information. Please check BEFORE you begin to make sure that you have a complete exam. Please do all your work on the pages provided. You may use the backside of pages for additional work, but please tell us that you are doing so (i.e. an arrow with a note in clear English saying "more work on back"). SHOW ALL WORK . GIVE UNITS for all answers that require them. Partial credit can only be given for those answers for which work is provided. CIRCLE YOUR ANSWER. We ask this so that we don't have to interpret what you intended as your final answer. GOOD LUCK! Prob. W.S. 1(25) 2(25) 3(25) 4(25) 5(25) 6(25) E.C.(5) Total Score ROCHESTER U N I V E R S I T Y O F University of Rochester Rochester, New York 14627-0216 COLLEGE OF ARTS AND SCIENCE DEPARTMENT OF CHEMISTRY
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1) You have two identical 1L flasks and fill one with H 2 and one with Ar. The flasks are also placed at STP. Assume the gasses are ideal and circle the correct answer for the following 5 questions below. a) (5 pts.) Which flask contains more atoms ? H 2 Ar Both flasks the same Neither flask b) (5 pts.) Which flask contains more mass ? H 2 Ar Both flasks the same Neither flask c) (5 pts.) In which flask is the average kinetic energy of the molecules higher? H
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This test prep was uploaded on 04/17/2008 for the course CHM 131 taught by Professor Krugh during the Fall '04 term at Rochester.

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CHM 131 - Exam2 - 2004 - ROCHESTER 26 October 2004...

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