What do you understand by the term ’auto-protolysis’ of water? What is its significance?

Asked by Abhisek | 1 year ago |  63

##### Solution :-

Auto-protolysis (self-ionization) of water is a chemical reaction in which 2 water molecules react to produce a hydroxide ion (OH) and a hydronium ion (H3O+).

The reaction involved can be represented as:

$$H_{2}O_{(l)}+H_{2}O_{(l)}\leftrightarrow H_{3}O^{+}_{(aq)}+OH^{-}_{(aq)}$$

Auto- protolysis of water indicates its amphoteric nature i.e., its ablity to act as an acid as well as a base.

The acid- base reaction can be written as :

$$H_{2}O_{(l)}+H_{2}O_{(l)}\leftrightarrow H_{3}O^{+}_{(aq)}+OH^{-}_{(aq)}$$

Answered by Pragya Singh | 1 year ago

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