Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A hydrated hydrogen ion, H3O+. Also called hydronium ion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the hydrated hydrogen ion, H3O+

Etymologies

hydr(o)- + (amm)onium.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • For chemists, the term hydronium ion (H3O+) is often substituted for hydrogen ion to reflect the association of a hydrogen ion with a molecule of water.

    PH

  • One might wonder whether an up quark, an uranium nucleus, a hydronium ion, a charged water droplet, and a balloon that has been rubbed on someone's jumper all belong to one kind.

    Natural Kinds

  • There were also several hydronium ions - water plus a hydrogen ion.

    Scientific American

  • The glycine/carbon dioxide complex would react spontaneously with a hydronium ion to produce glycine, water and carbon dioxide, he says.

    Scientific American

  • If the pH of groundwater is below pH 5, hydronium ions (H+) free aluminum ions from silicates in the soil.

    Featured Articles - Encyclopedia of Earth

  • Goldman said he was certain glycine would be formed within the first microsecond through a spontaneous reaction of the glycine/CO2 complex with a hydronium ion to form glycine, water and carbon dioxide, but the simulation is too complex to run long enough to see this.

    PhysOrg.com - latest science and technology news stories

  • H3O+ hydronium ion H+ and H3O+ mean the same thing

    Recently Uploaded Slideshows

  • H + is a proton Acids form H+ which attaches to water forming the hydronium ion H+ + H2O 

    Recently Uploaded Slideshows

  • · Determine concentration of hydroxide, hydronium and water at a given pH

    Softpedia - Windows - All

  • · Predict (qualitatively and quantitatively) how dilution and volume will effect the pH and concentration of hydroxide, hydronium and water

    Softpedia - Windows - All

Wordnik is becoming a not-for-profit! Read our announcement here.

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.