Complete the following table "predicted pH." Please show all work on a separate sheet of paper and attach. Note that the pK₂ of H₂PO4 is 7.2. Actual pH Predicted pH Original After 45 μL of 5 After 205 μL more solution M NaOH of 5M NaOH 4.30 6.05 6.90 After 205 μL more of 5M NaOH 11.01 After 45 μL more of 5 M NaOH 11.29

Complete the following table "predicted pH." Please show all work on a separate sheet of paper and attach. Note that the pK₂ of H₂PO4 is 7.2. Actual pH Predicted pH Original After 45 μL of 5 After 205 μL more solution M NaOH of 5M NaOH 4.30 6.05 6.90 After 205 μL more of 5M NaOH 11.01 After 45 μL more of 5 M NaOH 11.29

Chemistry

10th Edition

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

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Concept explainers

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.

Question

Complete the following table "predicted pH." Please show all work on a separate sheet of paper
and attach. Note that the pK, of H₂PO4 is 7.2.
Actual pH
Predicted pH
Original After 45 µL of 5
M NaOH
solution
4.30
6.05
After 205 μL more
of 5M NaOH
6.90
After 205 μL more
of 5M NaOH
11.01
After 45 μL more
of 5 M NaOH
11.29

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