EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 5.3, Problem 14E

(a)

Interpretation Introduction

Interpretation: The value of Keq for the given reaction needs to be determined, if pKas of phenol and carbonic acid are 10.0 and 6.4 respectively.

Concept Introduction: The pH of buffer solutions can be calculated with the help of Henderson-Hasselbalch equation. The Henderson-Hasselbalch equation can be used that gives the relation between pH and pKa for weak acids.

  pH = pKa +  log [Conjugated base][Acid]pOH = pKb + log [Salt][base]

(b)

Interpretation Introduction

Interpretation: The reason of sodium bicarbonate to be a suitable base for separating phenol from a neutral organic compound needs to be explained.

Concept Introduction: The pH of buffer solutions can be calculated with the help of Henderson-Hasselbalch equation. The Henderson-Hasselbalch equation can be used that gives the relation between pH and pKa for weak acids.

  pH = pKa +  log [Conjugated base][Acid]pOH = pKb + log [Salt][base]

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