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Past Exam for CHEM 131 - CHEM FUNDAMENTALS I with Eichhorn at Maryland (UMD)

Exam Information

Material Type:Exam 3
Professor:Eichhorn
Class:CHEM 131 - CHEM FUNDAMENTALS I
Subject:Chemistry
University:University of Maryland
Term:Fall 1999
Keywords:
  • Maximum Number
  • Electronegativity
  • Molar Masses
  • Bond Length
  • Temperature
  • Configuration
  • Chemical Equilibrium
  • Polar Covalent
  • Lewis Structure
  • Covalent Bonding
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Sample Document Text

CHEM 103 - Dr. Eichhorn Name __ _ please print Examffi December 3, 1999 T.A. _______ _ ****************************************************************************************** In all problems the method must be clearly shown. All numerical answers must be expressed using the correct number of significant figures. ****************************************************************************************** Atomic and molar masses (in g-mol- 1 ): CO ..... 28.010 H2.. 2 . 016 NO ..... 19.015 For H20: At 23.0, PH20 = 21.1 mm Hg Electronegativities: C ..... 2.5 0 ..... 3.5 S ..... 2.5 F. .... 4.0 1. For TeF4, give: (14) a) the Lewis Structure including all resonance forms b) the formal charge on the central atom c) oxidation states of all atoms d) show bond dipoles e) classify the bonds as ionic, covalent, or polar covalent f) the number of cr bonds and 1t bonds in TeF4: cr __ _ 1t ___ _ g) hybridization of Te -1- 2. At 75.1 C, the volume of a sample of gas i...

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