An unknown compound is insoluble in water but dissolves in sodium bicarbonate with a release of carbon dioxide bubbles. The compound is almost certainly:

Question

Quizplus · Accepted Answer

The fact that the compound dissolves in sodium bicarbonate with a release of bubbles indicates that it is an acid. Additionally, the fact that it is insoluble in water suggests that it is likely a carboxylic acid, which are often insoluble in water but soluble in basic solutions.

An Unknown Compound Is Insoluble in Water but Dissolves in Sodium