Supplementary-Materials-Exam-2-2010

Supplementary-Materials-Exam-2-2010 - Chemistry 300L...

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Chemistry 300L Supplementary Examination Materials page 1 Chemistry 300L Analytical Chemistry EXAMINATION SUPPLEMENTARY MATERIALS for Exam 2 Some Constants of Interest F = 9.649 × 10 4 coulombs/mol R = gas constant = 8.314 J/K·mol or volt·coulombs/K·mol = N A k B Plank’s Constant is 6.626 x 10 34 J s Speed of light is 2.997 x 10 8 m s 1 Avogadro’s Number, N A , is 6.022 x 10 23 mol 1 Boltzmann’s constant, k B , is 1.381 x 10 23 J K 1
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Chemistry 300L Supplementary Examination Materials page 2 Chapter 8 Equations and Tables
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Chemistry 300L Supplementary Examination Materials page 3 µ = 1 2 Σ i C Z 2 i i (8-3) Ionic Strength = Electrolyte Molarity Ionic Strength 1:1 M M 2:1 M 3M 3:2 M 6M 2:2 M 4M (8-6) Extended Debye-Hückel equation log γ = 0.51 z 2 µ 1 ( µ + α 305) (at 25 o C) γ = activity coefficient Chapters 9 and 10 Equations (9-1) pH + pOH = p K w (9-5) K a · K b = K w and p K a + p K b = p K w (10-5) for diprotic acids/bases: K a1 · K b2 = K w and K a2 · K b1 = K w (9-16) Henderson Hasselbalch equation pH = p K a + log [A ] γ A [HA] γ HA
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This note was uploaded on 03/28/2011 for the course CHEM 300L at USC.

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Supplementary-Materials-Exam-2-2010 - Chemistry 300L...

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