Chemistry › Ion
Mendeleev · Ion
Hydronium ion
Hydronium ion: formula H3O^+, charge +, atomic composition and molar mass.
IonH3O+
H3O+
Charge+
Molar mass19.023 g/mol
Atoms4
This ion has a net charge of +. Its formula directly shows the number of atoms of each element.
The displayed molar mass uses the atomic weights of the elements. For ordinary chemical calculations, the mass of electrons gained or lost is negligible at this precision.