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How do we know whether a Hydrogen ion is completely dissociated in the water or not? Please explain with example.

Asked by armanoza 18th July 2016, 10:20 PM
Answered by Expert
Answer:

The strength of an acid depends on the concentration of the hydronium ions (H3O+) present in the aqueous solution of an acid.

 

  • Strong Acids

A strong acid vigorously ionises in aqueous solution completely thereby producing a high concentration of hydronium ions (H3O+).

Examples: HNO3, HCl, H2SO4

Reaction:

                               HCl  + H2O       ⇋  H3O+   + Cl

  • Weak Acids

     Weak acids ionise only partially in aqueous solution to produce ions and molecules.

     Examples: H2CO3, CH3COOH, HCOOH

Reaction:

     CH3COOH + H2O       ⇋  H+   + CH3COO

 

Answered by Expert 19th July 2016, 11:24 AM
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