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Example of a substance that is a Bronsted-Lowry, but not Arrhenius

  1. Dec 10, 2007 #1
    Could someone give and example of a substance that is a Bronsted-Lowry base, but not an Arrhenius base..
  2. jcsd
  3. Dec 10, 2007 #2
    Ammonia (NH3)

    Accepts a proton (Bronsted-Lowry), yet does not disassociate hydroxide ions into water (not Arrhenius)
  4. Dec 17, 2007 #3
    no think about Lewis acids/bases
  5. Dec 18, 2007 #4
    Lewis bases are defined as being able to donate a pair of electrons, ammonia also falls into this category... is that what you mean?

    NH3 is generally regarded as not an Arrhenius base since it autoionizes and is amphoteric:

    NH3 + NH3 ⇄ NH4+ + NH2-
    Last edited: Dec 18, 2007
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