Here's why:
* Polarity: Ammonia is a polar molecule due to its lone pair of electrons on the nitrogen atom. Water is also a polar molecule. "Like dissolves like," meaning polar substances dissolve well in other polar substances.
* Hydrogen bonding: Ammonia can form hydrogen bonds with water molecules, further increasing its solubility.
While other gases like carbon dioxide (CO₂) and oxygen (O₂) are also soluble in water to some extent, their solubility is significantly less than ammonia's due to their non-polar nature and lack of hydrogen bonding capability.
