Frequently Asked Questions about HI (Hydroiodic Acid)
Is HI an Acid or Base?
HI, hydroiodic acid, like its name suggests, is an acid. It releases H+ in water. According to Arrhenius theory, a compound that can release hydrogen-ion (H+) in water is considered an acid. Since hydroiodic acid does so too, it is labeled as an acid as well.
Is HI (Hydroiodic Acid) a Strong or Weak Acid?
HI (hydroiodic acid) is a strong acid with a pH of 3.01. When dissolved in water, it releases H+. That makes it an acid. And definitions state that any acid that completely dissociates or ionizes in water is a strong acid. As Hydroiodic acid ionizes completely in aqueous solution, it is a strong acid too.
What is HI commonly used for?
HI (hydroiodic acid) is an ingredient in disinfectants. Since it is highly acidic, it helps to kill germs and viruses more effectively. It is also used to clean medical tools and many other things. In addition many laboratories use it as a reducing agent in different chemical reactions.
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