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weak acid titration - 9887600 conc HA 0.1 vol HA mmol HA...

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5a35decafcd981be6418657e22d23ed23792c383.xls Page 1 pKa pKb 4.74 9.26 conc HA vol HA mmol HA conc OH- Ka Kb Kw endpoint 0.1 50 5 0.1 1.80E-05 0 1.00E-14 50 mmol HAmmol A- combined equil equil pre-equil pre-equil mL OH- % titrated left made total ml [OH-] [H+] [A-] [HA] added pH this is for the pH=7 line for reference 0.00% 5 0 50 7.50E-12 1.33E-03 0.00E+00 1.00E-01 0 2.88 0 7 10.00% 4.5 0.5 55 6.29E-11 1.59E-04 9.09E-03 8.18E-02 5 3.80 100 7 25.00% 3.75 1.25 62.5 1.86E-10 5.38E-05 2.00E-02 6.00E-02 12.5 4.27 50.00% 2.5 2.5 75 5.56E-10 1.80E-05 3.33E-02 3.33E-02 25 4.75 75.00% 1.25 3.75 87.5 1.67E-09 6.00E-06 4.29E-02 1.43E-02 37.5 5.22 90.00% 0.5 4.5 95 5.00E-09 2.00E-06 4.74E-02 5.26E-03 45 5.70 99.00% 0.05 4.95 99.5 5.50E-08 1.82E-07 4.97E-02 5.03E-04 49.5 6.74 99.75% 0.01 4.99 99.88 2.21E-07 4.52E-08 4.99E-02 1.25E-04 49.88 7.34 100.00% 0 5 100 5.27E-06 1.90E-09 5.00E-02 0.00E+00 50 8.72 100.25% -0.01 5 100.13 1.25E-04 8.00E-11 4.99E-02 0.00E+00 50.13 10.10 101.00% -0.05 5 100.5 4.98E-04
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