Here's why:
* Ammonia (NH₃) is a volatile compound: It readily evaporates at room temperature, meaning it transitions from a liquid to a gas easily.
* Ammonium hydroxide (NH₄OH) is a solution: It's formed when ammonia dissolves in water. This solution contains ammonia molecules, ammonium ions (NH₄⁺), and hydroxide ions (OH⁻).
* The volatility of ammonia drives the volatility of the solution: When you heat the solution, the ammonia evaporates, leaving behind water.
In summary: While ammonium hydroxide is a liquid, it contains a volatile compound (ammonia), making it a volatile solution, not a non-volatile liquid.
