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Past Exam for CHEM 135 - GEN CHEM FOR ENGINEERS with DeVoe at Maryland (UMD)

Exam Information

Material Type:Exam 3
Professor:DeVoe
Class:CHEM 135 - GEN CHEM FOR ENGINEERS
Subject:Chemistry
University:University of Maryland
Term:Fall 1998
Keywords:
  • Sulfurous Acid
  • Temperature
  • Constant Temperature
  • Concentration
  • Determination
  • Hydrogen Ion
  • Unsaturated
  • Supersaturated
  • Gas Constant
  • Short Answers
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Sample Document Text

,'" - .. CHEM 133 (Prof. DeVoe) YOUR NAME (printed) __________________ _ Exam 3 Version lJ December 2, 1998 Circle the name of your T A: Georgette Guru Jen Lei Lubna Matt Paul This exam has a total of 100 points. Please make sure you have all five pages. Do not write in this space 1-4 __ /8 5. __ /8 6. __ /6 7. __ /6 8. ___ /9 9. ___ /8 10. __ 110 1l. ___ /5 12. __ 110 13. ___ /20 14. ____ /10 TOTAL _____ 1100 PART I. Four multiple-choice questions (2 pts each, 8 pts total). Write the letter (A, 13, etc.) of the one best answer for each question on the line at the right. 1. If a reaction has an equilibrium constant Kc = 1 x 10- 5 , you can be certain that A) the reaction proceeds to only a small extent B) the reaction is exothermic C) a catalyst is present D) the reaction goes to completion E) the temperature is very low 2. Sulfurous acid, H 2 S0 3 , is a diprotic acid with ionization constants Kat = 1.7 X 10- 2 and Ka2 = 6.4 X 10- 8 . In a 0.10 1\1 solution ...

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