# Hydrochloric acid is not soluble in toluene, a nonpolar solvent but quite soluble in water. What can be inferred about the nature of the acid?

Jun 15, 2017

That it's a polar compound.

#### Explanation:

Likes dissolve in likes.

Hydrochloric acid not only dissolves in water, but it dissociates:
$H C l \to {H}^{+} + C {l}^{-}$

The ${H}^{+}$ attaches to a water molecule to form hydronium:
$H C l + {H}_{2} O \to {H}_{3} {O}^{+} + C {l}^{-}$

Where the hydronium is causing the acidity.