Question

If we take hydrochloric acid and acetic acid of same concentration, which produce less h+ ion concentration? Out of two which one is a weak acid

Answer 1

acetic acid is a weak acid cause it will not get completely ionised in the solution and hence hydrochloric acid will produce more H+ ions and is more strong

Answer 2

Out of acetic acid and hydrochloric acid, acetic acid is a weak acid.

Explanation:

• A weak acid is defined as an acid that partially dissociates when dissolved in water. Whereas a strong acid is defined as an acid that completely dissociates into ions when dissolved in water.

• For example, acetic acid ($CH_{3}COOH$) is a weak acid and it will dissociate as follows.

           $CH_{3}COOH \rightleftharpoons CH_{3}COO^{-} + H^{+}$

As acetic acid is less dissociating in nature hence, the hydrogen ions produced by it are less.

• As hydrochloric acid (HCl) is a strong acid so it will dissociate as follows.

                  $HCl \rightarrow H^{+} + Cl^{-}$

As hydrochloric acid is more dissociating in nature hence, it produces more number of hydrogen ions.

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