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Question

Is hydrochloric acid strong or weak?


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Solution

Explanation with a diagram:

Hydrochloric acid (HCl) is a strong acid because it dissociates completely.

  1. In comparison, acetic acid (CH3COOH) does not dissociate well in water, many H+ions are bound inside the molecule.
  2. Simply put, the stronger the acid, the more free H+ions will be released into the solution.
  3. A strong acid is one that completely dissolves in water. That is, all the acid molecules dissolve (attached) in the water molecules.
  4. As a result, the concentration of hydronium ions in the strong acid solution is equal to the concentration of the acid.
  5. Hydrochloric acid is commonly used in the production of photoflash bulbs, and flares batteries, It is also used in the refining of sugar and the production of gelatin.

Structure of Hydrochloric acid,

Hence, Hydrochloric acid is strong, not weak.


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