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During the titration the following reaction occurs HA + NaOH = NaA + H20 What is the concentration of A" (the conjugate base of the weak acid) at the equivalence point? Use [A'] and the pH at the equivalence point to estimate K, of the weak acid (this is the hard way of estimating K,) Use the pH at the half-way point to estimate K of the weak acid (this is the easier way)

During the titration the following reaction occurs HA + NaOH = NaA + H20 What is the concentration of A" (the conjugate base of the weak acid) at the equivalence point? Use [A'] and the pH at the equivalence point to estimate K, of the weak acid (this is the hard way of estimating K,) Use the pH at the half-way point to estimate K of the weak acid (this is the easier way)

Chemistry
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
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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[A-] = 0.691

ml NaOH added pH Half-way Point 17.66 3.46 Equivalence point 35.31 8.49
Transcribed Image Text:ml NaOH added pH Half-way Point 17.66 3.46 Equivalence point 35.31 8.49
During the titration the following reaction occurs HA + NAOH = NaA + H20 What is the concentration of A (the conjugate base of the weak acid) at the equivalence point? M Use [A]and the pH at the equivalence point to estimate Ka of the weak acid (this is the hard way of estimating Ka) Use the pH at the half-way point to estimate K, of the weak acid (this is the easier way)
Transcribed Image Text:During the titration the following reaction occurs HA + NAOH = NaA + H20 What is the concentration of A (the conjugate base of the weak acid) at the equivalence point? M Use [A]and the pH at the equivalence point to estimate Ka of the weak acid (this is the hard way of estimating Ka) Use the pH at the half-way point to estimate K, of the weak acid (this is the easier way)
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