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What are Arrhenius bases?

1 Answer

Jun 1, 2016

compounds that give hydroxide ion $O H^{-}$ $OH^(-)$ in aqueous solution.

Explanation:

Arrhenius definition of bases: compounds that give hydroxide ion $O H^{-}$ $OH^(-)$ in aqueous solution.

Example: $N a O H$ $NaOH$ , $C a {(O H)}_{2}$ $Ca(OH)_2$ , $H_{2} O$ $H_2O$ , etc...

This is a limited definition of bases, therefore, Brønsted-Lowry definition is broader: Bases are compounds that accept hydrogen ion $H^{+}$ $H^+$ .

Example: $N H_{3}$ $NH_3$ .

$N H_{3} (a q) + H^{+} (a q) \to N H_{4}^{+} (a q)$ $NH_3(aq)+H^(+)(aq)->NH_4^(+)(aq)$

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