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Given [NaOH] of 0.1189 M Calculate Ka1 for each trial. Calculate average Ka1. Calculate Ka2 for each trial. Calculate average Ka2.   TRIAL 1: pH at midpoint 1 = 1.8217 pH at midpoint 2 = 6.679 V of NaOH (titrant) needed for 1st equivalence point = 18.50 mL V of NaOH (titrant) needed for 2nd equivalence point = 34.99 mL V of NaOH (titrant) needed for midpoint 1 = 9.25 mL V of NaOH (titrant) needed for midpoint 2 = 26.745 mL   TRIAL 2: pH at midpoint 1 = 3.963 pH at midpoint 2 = 9.071 V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL V of NaOH (titrant) needed for midpoint 1 = 7.39 mL V of NaOH (titrant) needed for midpoint 2 = 22.135 mL   TRIAL 3: pH at midpoint 1 = 1.637 pH at midpoint 2 = 6.633 V of NaOH (titrant) needed for 1st equivalence point = 14.72 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.25 mL V of NaOH (titrant) needed for midpoint 1 = 7.36 mL V of NaOH (titrant) needed for midpoint 2 = 21.985 mL   TRIAL 4: pH at midpoint 1 = 3.963 pH at midpoint 2 = 9.071 V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL V of NaOH (titrant) needed for midpoint 1 = 7.39 mL V of NaOH (titrant) needed for midpoint 2 = 22.135 mL

Given [NaOH] of 0.1189 M Calculate Ka1 for each trial. Calculate average Ka1. Calculate Ka2 for each trial. Calculate average Ka2.   TRIAL 1: pH at midpoint 1 = 1.8217 pH at midpoint 2 = 6.679 V of NaOH (titrant) needed for 1st equivalence point = 18.50 mL V of NaOH (titrant) needed for 2nd equivalence point = 34.99 mL V of NaOH (titrant) needed for midpoint 1 = 9.25 mL V of NaOH (titrant) needed for midpoint 2 = 26.745 mL   TRIAL 2: pH at midpoint 1 = 3.963 pH at midpoint 2 = 9.071 V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL V of NaOH (titrant) needed for midpoint 1 = 7.39 mL V of NaOH (titrant) needed for midpoint 2 = 22.135 mL   TRIAL 3: pH at midpoint 1 = 1.637 pH at midpoint 2 = 6.633 V of NaOH (titrant) needed for 1st equivalence point = 14.72 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.25 mL V of NaOH (titrant) needed for midpoint 1 = 7.36 mL V of NaOH (titrant) needed for midpoint 2 = 21.985 mL   TRIAL 4: pH at midpoint 1 = 3.963 pH at midpoint 2 = 9.071 V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL V of NaOH (titrant) needed for midpoint 1 = 7.39 mL V of NaOH (titrant) needed for midpoint 2 = 22.135 mL

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Given [NaOH] of 0.1189 M

  1. Calculate Ka1 for each trial.
  2. Calculate average Ka1.
  3. Calculate Ka2 for each trial.
  4. Calculate average Ka2.

 

TRIAL 1: pH at midpoint 1 = 1.8217

pH at midpoint 2 = 6.679

V of NaOH (titrant) needed for 1st equivalence point = 18.50 mL

V of NaOH (titrant) needed for 2nd equivalence point = 34.99 mL

V of NaOH (titrant) needed for midpoint 1 = 9.25 mL

V of NaOH (titrant) needed for midpoint 2 = 26.745 mL

 

TRIAL 2: pH at midpoint 1 = 3.963

pH at midpoint 2 = 9.071

V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL

V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL

V of NaOH (titrant) needed for midpoint 1 = 7.39 mL

V of NaOH (titrant) needed for midpoint 2 = 22.135 mL

 

TRIAL 3: pH at midpoint 1 = 1.637

pH at midpoint 2 = 6.633

V of NaOH (titrant) needed for 1st equivalence point = 14.72 mL

V of NaOH (titrant) needed for 2nd equivalence point = 29.25 mL

V of NaOH (titrant) needed for midpoint 1 = 7.36 mL

V of NaOH (titrant) needed for midpoint 2 = 21.985 mL

 

TRIAL 4: pH at midpoint 1 = 3.963

pH at midpoint 2 = 9.071

V of NaOH (titrant) needed for 1st equivalence point = 14.78 mL

V of NaOH (titrant) needed for 2nd equivalence point = 29.49 mL

V of NaOH (titrant) needed for midpoint 1 = 7.39 mL

V of NaOH (titrant) needed for midpoint 2 = 22.135 mL 

 

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