Universal_Acid_Titrator - Titration Curve 14 12 10 8 pH 6 4...

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Unformatted text preview: Titration Curve 14 12 10 8 pH 6 4 2 0 0 10 20 30 40 50 60 70 80 90 100 Vbase (mL) Universal Polyprotic Acid Titrator Minimum pH Maximum pH pH Increment 1 12 0.1 2 Cacid Vacid Cbase 0.1 M 25 mL 0.1 M 3 4 5 6 7 For mixtures of acids and bas R. deLevie, "General Express Anal. Chem., 68, 585-590 (19 Fictitious Triprotic Acid name Proton number 1 2 pK Used pK 2 K 0.01 pH α1 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4 4.1 4.2 4.3 4.4 4.5 4.6 0.09 0.11 0.14 0.17 0.2 0.24 0.28 0.33 0.39 0.44 0.5 0.55 0.61 0.66 0.7 0.74 0.77 0.8 0.82 0.83 0.83 0.83 0.82 0.8 0.77 0.74 0.7 0.66 0.61 0.55 0.5 0.44 0.38 0.33 0.28 0.23 0.19 α2 Acid 8 4 4 0 α3 6 6 0 α4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.01 0.01 0.01 0.02 0.02 0.03 20 15 0 α5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 15 0 α6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 15 0 α7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 15 0 α8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 15 0 0 0 0 0 0 0 0 0 0 0 0 0.01 0.01 0.01 0.02 0.02 0.03 0.04 0.05 0.07 0.08 0.1 0.13 0.16 0.19 0.23 0.28 0.33 0.38 0.44 0.5 0.55 0.61 0.66 0.7 0.74 0.77 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 0.16 0.13 0.1 0.08 0.07 0.05 0.04 0.03 0.02 0.02 0.01 0.01 0.01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.8 0.82 0.83 0.83 0.83 0.82 0.8 0.77 0.74 0.7 0.66 0.61 0.55 0.5 0.44 0.39 0.33 0.28 0.24 0.2 0.17 0.14 0.11 0.09 0.07 0.06 0.05 0.04 0.03 0.02 0.02 0.02 0.01 0.01 0.01 0.01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.04 0.05 0.07 0.08 0.1 0.13 0.16 0.19 0.23 0.28 0.33 0.38 0.44 0.5 0.56 0.61 0.67 0.71 0.76 0.8 0.83 0.86 0.89 0.91 0.93 0.94 0.95 0.96 0.97 0.98 0.98 0.98 0.99 0.99 0.99 0.99 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 cid Titrator For mixtures of acids and bases or for ampholytes, see R. deLevie, "General Expressions for Acid-Base Titrations of Arbitrary Mixtures," Anal. Chem., 68, 585-590 (1996). 9 10 20 15 0 α9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 α10 20 15 0 Σα Vbase mL 0.09 0.11 0.14 0.17 0.2 0.24 0.29 0.34 0.39 0.45 0.51 0.57 0.63 0.68 0.74 0.79 0.84 0.88 0.92 0.96 1 1.04 1.08 1.12 1.16 1.21 1.26 1.32 1.38 1.44 1.5 1.56 1.62 1.68 1.74 1.79 1.84 -11.36 -9.51 -7.57 -5.57 -3.51 -1.42 0.71 2.86 5.01 7.16 9.26 11.3 13.25 15.08 16.78 18.35 19.78 21.09 22.3 23.43 24.51 25.57 26.64 27.74 28.9 30.14 31.46 32.86 34.34 35.88 37.44 39 40.52 41.99 43.37 44.67 45.87 pH [H+] M 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4 4.1 4.2 4.3 4.4 4.5 4.6 0.1 0.08 0.06 0.05 0.04 0.03 0.03 0.02 0.02 0.01 0.01 0.01 0.01 0.01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.88 1.92 1.96 2 2.04 2.08 2.12 2.16 2.21 2.26 2.32 2.37 2.43 2.49 2.55 2.61 2.66 2.71 2.76 2.8 2.83 2.86 2.89 2.91 2.93 2.94 2.95 2.96 2.97 2.98 2.98 2.98 2.99 2.99 2.99 2.99 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 46.98 48.03 49.02 49.99 50.95 51.95 52.98 54.09 55.28 56.55 57.91 59.34 60.81 62.31 63.8 65.23 66.58 67.83 68.96 69.96 70.83 71.57 72.2 72.72 73.16 73.51 73.81 74.04 74.23 74.39 74.51 74.61 74.69 74.75 74.8 74.84 74.88 74.9 74.92 74.94 74.96 74.97 74.98 74.99 74.99 75 75.01 75.02 75.02 75.03 75.05 75.06 75.08 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 0 0 0 0 0 0 0 0 0 0 75.1 75.12 75.16 75.2 75.25 75.32 75.4 75.5 75.64 75.8 76.01 76.28 76.61 77.04 77.58 78.27 79.16 80.29 81.75 83.65 86.14 -25 -25 -25 -25 -25 -25 -25 -25 -25 -25 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ### ### ### ### ### ### ### ### ### ### ...
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This note was uploaded on 01/06/2011 for the course CHEM 223 taught by Professor Scheeline during the Fall '08 term at University of Illinois at Urbana–Champaign.

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