Chapter 21, Problem 33P

Interpretation Introduction

Interpretation:

The species that account for $81\%$ in the given aqueous acid that also contains $17\%$ of ${\left({\text{C}}_{\text{6}}{\text{H}}_{\text{5}}\right)}_{\text{2}}\text{CHCH}=\text{O}$ as the aldehyde and $2\%$ of the enol is to be identified and the $97\%$ of ${\left({\text{C}}_{\text{6}}{\text{H}}_{\text{5}}\right)}_{\text{2}}\text{CHCH}=\text{O}$ species that is present as a species different from previous species in aqueous base is to be identified.

Concept introduction:

Aldehydes and ketones contain carbonyl ($\text{C}=\text{O}$) functional group in their parent chain. The carbonyl oxygen of aldehydes and ketones is weakly basic that reacts with protons.

Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond.