Which are the bases of the above reaction HCl | vedclass

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Question

(A) In the reaction $HCl_{(aq)} + H_2O_{(aq)} \rightleftharpoons H_3O^{+}_{(aq)} + Cl^{-}_{(aq)}$,$H_2O$ acts as a base by accepting a proton $(H^+)$

Vedclass · Accepted Answer

$H_2O$ and $Cl^{-}$; $Cl^{-}$ is the weak base.

Vedclass · Answer

(A) In the reaction $HCl_{(aq)} + H_2O_{(aq)} \rightleftharpoons H_3O^{+}_{(aq)} + Cl^{-}_{(aq)}$,$H_2O$ acts as a base by accepting a proton $(H^+)$ to form $H_3O^+$. $Cl^-$ is the conjugate base of the strong acid $HCl$. According to the Brønsted-Lowry theory,the conjugate base of a strong acid is always a very weak base. Therefore,$H_2O$ and $Cl^-$ are the bases,and $Cl^-$ is the weak base.

Which are the bases of the above reaction $HCl_{(aq)} + H_2O_{(aq)} \rightleftharpoons H_3O^{+}_{(aq)} + Cl^{-}_{(aq)}$? Which base is weak?

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