Chem5F07PractFinalKey

Chem5F07PractFinalKey - b = K W = 1.0 x 10-14 { M = molar...

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Chemistry 5 Fall 2007 Answers to Final Exam Practice Problems
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Data Sheet Relationships (Note: some are applicable only under certain conditions) U = q + w (for Ideal Gases only) H = U + PV P V = n R T G = H - TS E = n (3/2) R T w = - P ext dV C p - C v = R q p = H w = -n R T ln(V 2 / V 1 ) q v = U q x = n C x T (x = P, V) S = n R ln(V 2 / V 1 ) S = (dq rev / T) S tr = H tr / T tr (tr = phase transition) G = G° + R T ln(Q) G° = -R T ln(K) ln(K 2 / K 1 ) = -( H° / R) (1/T 2 - 1/T 1 ) quadratic formula: x = [-b + (b 2 - 4ac) 1/2 ] / 2a pH = -log[H 3 O + ] Henderson-Hasselbalch: pH ~ pK a + log{[A-] 0 / [HA] 0 } M = ρ R T / P K a x K
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Unformatted text preview: b = K W = 1.0 x 10-14 { M = molar mass} K W = [H 3 O + ][OH-] I = Q / t G = w elec = -Q cell = -n F cell cell = cell- (0.0592 V / n) log Q cell = cathode- anode cell = (0.0592 V / n) log K Conversions Constants 1 atm = 760 torr = 760 mm Hg R = 0.08206 L atm mol-1 K-1 T(K) = T(C) + 273. = 8.314 J mol-1 K-1 1 L atm = 101.3 J k = 1.38 x 10-23 J K-1 1 J = 1 kg m 2 s-2 g = 9.8 m s-2 = 1 V C N A = 6.022 x 10 23 mol-1 1 = 1 x 10-10 m F = 96,485 C (mol electrons)-1 1 m 3 = 1000 L 1 A = 1 C s-1...
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This note was uploaded on 05/30/2008 for the course CHEM 5/6 taught by Professor Gribble during the Winter '08 term at Dartmouth.

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Chem5F07PractFinalKey - b = K W = 1.0 x 10-14 { M = molar...

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