Chem_208_11_07_web - Pre-Professional Association Toward...

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1 Prelim 1: Tues. Feb 27, 7:30- 9:00PM Ch. 7,14 Note: No alphanumeric or graphing calculators Pre-Professional Association Toward Careers in Health
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2 Chapter 15: Equilibrium Phase Equilibria : H 2 O (l) H 2 O (g) P H2O = 24 Torr = 0.0316 atm at 25 o C P H2O =150 Torr = 0.197 atm at 60 o C P H2O =760 Torr = 1.00 atm at 100 o C Solvation : NaCl (s) Na + (aq) + Cl - (aq) Sat’d solution: 330 g/liter @25 o C 370 g/liter @50 o C Chemical Reaction : NO 2 (g) + NO 2 (g) N 2 O 4 (g) H = -57.2 kJ/mol K P = P H2O K C = [Na + ][Cl - ] [] [] [] [ ] [] 2 2 4 2 2 2 4 2 C NO O N NO NO O N K = = () 2 NO O N NO NO O N P 2 4 2 2 2 4 2 P P P P P K = = OR
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3 V = 10.0 L CO H 2 CH 3 OH moles After reaching equilibrium at t e : [ ] [] [] 5 . 14 ) 0822 . 0 )( 0911 . 0 ( 0.00892 H CO OH H C K 2 2 2 3 = = =
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4 V = 10.0 L After reaching equilibrium at t e : [ ] [] [] 4 . 14 ) 151 . 0 )( 0753 . 0 ( 0.0247 H CO OH H C K 2 2 2 3 = = = CO H 2 CH 3 OH
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5 V = 10.0 L After reaching equilibrium at t e : [ ] [] [] 5 . 14 ) 176 . 0 )( 138 . 0 ( 0.0620 H CO OH H C K 2 2 2 3 = = = H 2 CO CH 3 OH
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Chem_208_11_07_web - Pre-Professional Association Toward...

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