Below is the titration curve for a monoprotic weak acid/weak base. In order to produce this curv you titrate the weak acid with NaOH until its all been converted to its weak base form. Recall fro general chemistry, at 1.0 equivalents of titrant (OH-), all of your original acid analyte has been neutralized (deprotonated) and is in its basic form. Please answer the following questions. 11 10 7 6. 5 3. 2 1 0.2 0.4 0.6 0.8 1 OH Equivalents a. What is the pKa of this compound? Entry Format: Please round your answer to the nearest wh number. b. At a pH of 6 will the concentration of the conjugate base be higher or lower than the concentration of conjugate acid? Entry Format: Please type the word higher or lower with no capitalization. c. Using the pKa you calculated in part a, find the percent of molecules that are in the conjugate form at a pH of 5.2. Entry Format: Please give your answer rounded to two significant figures and do not include a percent symbol. Two sig figs looks like: 1.0 60. 19. 19 Hd
Below is the titration curve for a monoprotic weak acid/weak base. In order to produce this curv you titrate the weak acid with NaOH until its all been converted to its weak base form. Recall fro general chemistry, at 1.0 equivalents of titrant (OH-), all of your original acid analyte has been neutralized (deprotonated) and is in its basic form. Please answer the following questions. 11 10 7 6. 5 3. 2 1 0.2 0.4 0.6 0.8 1 OH Equivalents a. What is the pKa of this compound? Entry Format: Please round your answer to the nearest wh number. b. At a pH of 6 will the concentration of the conjugate base be higher or lower than the concentration of conjugate acid? Entry Format: Please type the word higher or lower with no capitalization. c. Using the pKa you calculated in part a, find the percent of molecules that are in the conjugate form at a pH of 5.2. Entry Format: Please give your answer rounded to two significant figures and do not include a percent symbol. Two sig figs looks like: 1.0 60. 19. 19 Hd
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
Transcribed Image Text:Below is the titration curve for a monoprotic weak acid/weak base. In order to produce this curve
you titrate the weak acid with NaOH until its all been converted to its weak base form. Recall fro
general chemistry, at 1.0 equivalents of titrant (OH-), all of your original acid analyte has been
neutralized (deprotonated) and is in its basic form.
Please answer the following questions.
11
10
9
8
7
5
4
1
0.2
0.4
0.6
0.8
1
OH Equivalents
a. What is the pka of this compound? Entry Format: Please round your answer to the nearest wh
number.
b. At a pH of 6 will the concentration of the conjugate base be higher or lower than the
concentration of conjugate acid? Entry Format: Please type the word higher or lower with no
capitalization.
c. Using the pKa you calculated in part a, find the percent of molecules that are in the conjugate
form at a pH of 5.2.
Entry Format: Please give your answer rounded to two significant figures and do not include a
percent symbol. Two sig figs looks like:
1.0
60.
19.
19
If vou need to double check vouimay use a sig fig calculator
Hd
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