MASC Midterm I Fall 2008

MASC Midterm I Fall 2008 - 5 3. Calculate the lattice...

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University of Southern California MASC 110L Midterm I E. Goo September 26, 2008 Answer all questions. All questions are of equal value. You must show your work neatly to get full credit. 1. Give the electronic configuration for the following atoms or ions: a) Si b) O c) Na + d) Cl - e) Ti
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2. Give the steric number of the center atom and predict the shape of the following molecules a) CH 4 b) XeF 2 c) PCl 3 d) XeF 4 e) PCl
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Unformatted text preview: 5 3. Calculate the lattice energy of NaCl. The Madelung constant is 1.75. The ionization energy for Na is 496 kJ/mole and the electron affinity for Cl is -342 kJ/mole. The Na + ion radius is 102 pm and the Cl-ion radius is 181 pm. 4. A balloon is filled with hydrogen at 25 o C. If the balloon is cooled to 77 K what will be the percent change in the volume if the pressure is constant at two atm....
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This note was uploaded on 02/13/2009 for the course MASC 110L taught by Professor Goo during the Fall '07 term at USC.

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MASC Midterm I Fall 2008 - 5 3. Calculate the lattice...

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