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(D) The $pH$ of a solution is inversely related to the concentration of $H^+$ ions.$HNO_3$ and $HCl$ are strong acids,so they fully dissociate to prov

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$0.2 \ M \ CH_3COONa$

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(D) The $pH$ of a solution is inversely related to the concentration of $H^+$ ions.$HNO_3$ and $HCl$ are strong acids,so they fully dissociate to provide a high concentration of $H^+$ ions,resulting in a very low $pH$ (typically $$CH_3COOH$ is a weak acid,which partially dissociates,resulting in a higher $pH$ than strong acids but still acidic $(pH $CH_3COONa$ is a salt of a weak acid $(CH_3COOH)$ and a strong base $(NaOH)$. It undergoes anionic hydrolysis: $CH_3COO^- + H_2O \rightleftharpoons CH_3COOH + OH^-$.This hydrolysis produces $OH^-$ ions,making the solution basic,which results in a $pH > 7$.Therefore,$0.2 \ M \ CH_3COONa$ has the maximum $pH$ value.

Which of the following solutions has the maximum $pH$ value?

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