A buffer is made with 200.0 mL of 0.30 M propanoic acid (HC3H5O2) and 300.0 mL of 0.267 M NaC3H5O2. HC3H5O2 has a Ka of 1.3 x 10-5. a. Calculate the initial pH of the buffer. b. Calculate the pH for the resulting solution when 10.0 mL of 0.15 M hydroiodic acid, HI, is added to the buffer. A buffer is made with 200.0 mL of 0.30 M propanoic acid (HC3H50₂) and 300.0 mL of0.267 M NaC3H5O2. HC3H5O₂ has a ka of 1.3 x 10-5a. Calculate the initial pH of the buffer.b. Calculate the pH for the resulting solution when 10.0 mL of 0.15 M hydroiodicacid, HI, is added to the buffer.

Buffer solution is the solution which have capacity to resist the change of its pH value even with…

Answered: A buffer is made with 200.0 mL of 0.30…

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 31QRT

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A buffer is made with 200.0 mL of 0.30 M propanoic acid (HC3H5O2) and 300.0 mL of
0.267 M NaC3H5O2. HC3H5O2 has a Ka of 1.3 x 10-5.
a. Calculate the initial pH of the buffer.
b. Calculate the pH for the resulting solution when 10.0 mL of 0.15 M hydroiodic
acid, HI, is added to the buffer.

A buffer is made with 200.0 mL of 0.30 M propanoic acid (HC3H50₂) and 300.0 mL of
0.267 M NaC3H5O2. HC3H5O₂ has a ka of 1.3 x 10-5
a. Calculate the initial pH of the buffer.
b. Calculate the pH for the resulting solution when 10.0 mL of 0.15 M hydroiodic
acid, HI, is added to the buffer.

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