Question

why are hydronium ions always in H3O+

Answer 1

H+ ions in solution are always bound to some neutral molecule, typically the solvent. They are rapidly traded between molecules, and so are often cited just as “H+” even though H+ by itself is extremely unstable and only found under high-energy, high-vacuum conditions.

Answer 2

✔️✔️What exactly are hydronium ions?

⭕️In aqueous solution of acids, acid dissociate to form hydrogen ions and combines with water molecules to form hydronium ion (H3O+).

✔️✔️why are hydronium ions always in H3O+??

⭕️In solution, H+ ions bound to water molecules.

⭕️ They get exchanged by hydrogen-transfer because one hydrogen is just similar to another.

⭕️single H+ may bound to more than one water molecule at a time, as it may be hydrogen-bonded.

⭕️H+ ions in solution are always bound to some neutral molecule i.e the solvent.