CH110 Dr. Maly - Name: Student #: CH110/120 Fundamentals of

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Name: Student #: CH110/120 – Fundamentals of Chemistry/Introductory Chemistry Midterm #1 Friday, October 15th, 2010 5:30-7:00 pm Instructor: Dr. Ken Maly Instructions: Multiple choice: PENCIL only . If pen is used the scanner will not scan your card. 1. Always make dark marks . (Rectangles completely not filled in can affect your mark!) 2. All cards need to have a nine-digit ID number and Name 3. ID numbers are flushed left 4. All corresponding rectangles/circles below the ID number need to be filled in with pencil 5. On the front of the sheet fill in Last Name, followed by a space, First Name. Completely fill in the corresponding rectangles below your name. 6. On the back of the sheet, fill out your ID number and corresponding rectangles below. 7. Completely fill out “A” under the Test Form section. Problems: Answer in the space provided. Allowed aids: Calculator. No additional aids permitted. Good luck! Grade: Multiple Choice: ______ (/20) Problems: ______ (/10) Total: (/30) Formulas and constants: T A A p X p nRT pV = = A kinetic kinetic N RT E mv E 2 3 2 2 1 = = 2 / 1 3 = MM RT v 1 2 2 1 MM MM v v = N A =6.022x10 23 particles/mol R= 0.08314 L bar mol -1 K -1 R= 8.314 L kPa mol -1 K -1 R= 8.314 J mol -1 K -1 1 atm = 1.01325 bar = 1.01x10 5 Pa = 760 mm Hg 1 of 9
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Name: Student #: I. Multiple Choice Questions (Please circle the best answer and fill in your final answer on Scantron card provided.) (20 marks) 1. Carbon-14 ( 14 C) is a radioactive isotope that is used in estimating the age of artifacts which were once living things (wood, leather, bone for example). 14 C is produced from 14 N with the help of cosmic radiation. Which of the following statements best describes the difference between the 14 C and 14 N nuclei? a. The carbon isotope is lighter than the nitrogen nucleus b. The nitrogen isotope is less toxic than the carbon isotope c. The carbon isotope has one more proton and one less neutron than the nitrogen isotope d. The nitrogen isotope is lighter than the carbon isotope e. The nitrogen isotope has one more proton and one less neutron than the carbon isotope. 2.
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This note was uploaded on 10/14/2011 for the course CHEM 110 taught by Professor Maly during the Fall '10 term at Wilfred Laurier University .

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CH110 Dr. Maly - Name: Student #: CH110/120 Fundamentals of

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