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
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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Question
[A-] = 0.691
![ml NaOH added
pH
Half-way Point
17.66
3.46
Equivalence point
35.31
8.49](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0c365b9c-2713-4371-a77a-f9bb68b19349%2F8fd51101-7d4b-4a33-ba08-dc460758afb0%2F6g6t9tl_processed.png&w=3840&q=75)
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)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0c365b9c-2713-4371-a77a-f9bb68b19349%2F8fd51101-7d4b-4a33-ba08-dc460758afb0%2Fk2dh4ej_processed.png&w=3840&q=75)
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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