Calculate the pH of a 2.00 M Na2CO3 given that the pKa’s of the first and second dissociation of H2CO3 (aq) acid are 6.37 and 10.32, respectively. b/ 100. mL of the above solution is titrated with 4.00 M HCl. Calculate the pH at the first equivalence point. c/ Calculate the pH at the second equivalence point.
Calculate the pH of a 2.00 M Na2CO3 given that the pKa’s of the first and second dissociation of H2CO3 (aq) acid are 6.37 and 10.32, respectively. b/ 100. mL of the above solution is titrated with 4.00 M HCl. Calculate the pH at the first equivalence point. c/ Calculate the pH at the second equivalence point.
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
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 20Q: Consider the following two acids: pKa1 = 2.98; pKa2 = 13.40 HO2CCH2CH2CH2CH2CO2H Adipic acid pKa1 =...
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Calculate the pH of a 2.00 M Na2CO3 given that the pKa’s of the first and second dissociation of H2CO3 (aq) acid are 6.37 and 10.32, respectively.
b/ 100. mL of the above solution is titrated with 4.00 M HCl. Calculate the pH at the first equivalence point.
c/ Calculate the pH at the second equivalence point.
Expert Solution
Step 1
(b)
Given
For H2CO3 , pKa1 = 6.37 , pKa2 = 10.32
Molarity of Na2CO3 solution = 2.00 M
Molarity of HCl solution = 4.00 M
Volume of HCl solution = 100 mL
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