Question

What molar ratio of salt to acid would be required to prepare a buffer solution with a pH of 4.5? The pKa value of the acid is 4.05 at 250C.

Name: what molar ratio of salt to acid would be required to prepare a buffer solution with a ph of 45 the pka value of the acid is 405 at 250c 79117
Uploaded: 2022-05-27T14:40:36-08:00
Duration: 1 min 31 s
Channel: John Incabo
Description: what molar ratio of salt to acid would be required to prepare a buffer solution with a ph of 45 the pka value of the acid is 405 at 250c 79117

          What molar ratio of salt to acid would be required to prepare a
buffer solution with a pH of 4.5? The pKa value of the acid is 4.05
at 250C.

Added by Jessica R.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert John Incabo

05/27/2022

Step 1

The pH of the buffer solution is 4.5, and the pKa of the acid is 4.05. We will use the Henderson-Hasselbalch equation to find the molar ratio of salt (conjugate base) to acid. The Henderson-Hasselbalch equation is: \[ \text{pH} = \text{pKa} + \log \left( Show more…

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