122 _quiz2wk4_ch11 wi06key

122 _quiz2wk4_ch11 wi06key - 2 atoms ( 1 in middle plus...

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Name________________________________________________ Recitation-TA__________________________ KEY (periodic table should be supplied for this quiz) 1 Quiz #2: Chapter 11 Chemistry 122 1. (6 pts; no partial credit) Consider a cubic unit cell with an atom located at each lattice point. Calculate the net number of atoms within a) a primitive cubic unit cell 1 atom (8 corners x 1/8 =1) b) a face-centered unit cell 4 atoms (6 x ½ =3; plus 8 x 1/8 =1, total of 4) c) a body centered unit cell
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Unformatted text preview: 2 atoms ( 1 in middle plus 8x1/8 =2) 2. (3 pts) Place the following substances in the order of increasing volatility: CH 4 , CH 3 Cl, C 2 H 2 I 4 , CCl 4 , CI 4 , CHI 3 C 2 H 2 I 4 < CI 4 < CHI 3 < CCl 4 < CH 3 Cl < CH 4 3. (1 pt) Using the phase diagram below for a substance, state what phase the substance is in at 20 C and 0.8 atm. (Possible phases are: supercritical fluid, liquid, gas, solid, supercooled fluid, etc.; x is not an appropriate answer) Answer: Liquid...
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