8. You are titrating 50.0 mL of 0.200 M propanoic acid with 0.100 M NaOH. Use the data in the table to answer the questions. Name Propanoic acid Structure CH3CH2CO2H pka 4.874 Ka 1.34 × 10-5 a) Assuming that the equivalence point is considered 100% completion, calculate the pH at the following points: 0%, 10%, 50%, 90%, 100%, and 120%. b) Sketch the titration curve. c) What would be an ideal pKa for an indicator to use in this titration?
8. You are titrating 50.0 mL of 0.200 M propanoic acid with 0.100 M NaOH. Use the data in the table to answer the questions. Name Propanoic acid Structure CH3CH2CO2H pka 4.874 Ka 1.34 × 10-5 a) Assuming that the equivalence point is considered 100% completion, calculate the pH at the following points: 0%, 10%, 50%, 90%, 100%, and 120%. b) Sketch the titration curve. c) What would be an ideal pKa for an indicator to use in this titration?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 93QRT: When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence...
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![8. You are titrating 50.0 mL of 0.200 M propanoic acid with 0.100 M NaOH. Use the data in the table to
answer the questions.
Name
Propanoic acid
Structure
CH3CH2CO2H
pka
4.874
Ka
1.34 × 10-5
a) Assuming that the equivalence point is considered 100% completion, calculate the pH at the
following points: 0%, 10%, 50%, 90%, 100%, and 120%.
b) Sketch the titration curve.
c) What would be an ideal pKa for an indicator to use in this titration?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9d43d63d-5b8b-46d5-a59a-62a554bc0289%2Fada05cd4-efe6-4709-8fc2-51bad8c1f827%2F0luhdwv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:8. You are titrating 50.0 mL of 0.200 M propanoic acid with 0.100 M NaOH. Use the data in the table to
answer the questions.
Name
Propanoic acid
Structure
CH3CH2CO2H
pka
4.874
Ka
1.34 × 10-5
a) Assuming that the equivalence point is considered 100% completion, calculate the pH at the
following points: 0%, 10%, 50%, 90%, 100%, and 120%.
b) Sketch the titration curve.
c) What would be an ideal pKa for an indicator to use in this titration?
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