Ammonium hydroxide (NH₄OH) is not a stronger base than sodium hydroxide (NaOH).

Here's why:

* Ammonium hydroxide is a weak base: It exists in equilibrium with ammonia (NH₃) and water (H₂O). Only a small fraction of ammonium hydroxide molecules actually ionize to form hydroxide ions (OH^-).

* Sodium hydroxide is a strong base: It completely ionizes in solution, meaning all of its molecules dissociate into sodium ions (Na⁺) and hydroxide ions (OH^-).

Therefore, sodium hydroxide produces a much higher concentration of hydroxide ions in solution, making it a much stronger base than ammonium hydroxide.

To summarize:

* Strong bases: Completely ionize in solution, producing a high concentration of hydroxide ions.

* Weak bases: Only partially ionize in solution, producing a low concentration of hydroxide ions.