An aqueous solution of ammonium acetate is

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(D) Ammonium acetate $(CH_3COONH_4)$ is a salt formed from a weak acid $(CH_3COOH)$ and a weak base $(NH_4OH)$.For a salt of a weak acid and a weak ba

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Almost neutral

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(D) Ammonium acetate $(CH_3COONH_4)$ is a salt formed from a weak acid $(CH_3COOH)$ and a weak base $(NH_4OH)$.For a salt of a weak acid and a weak base,the $pH$ of the aqueous solution is given by the formula: $pH = 7 + \frac{1}{2}(pK_a - pK_b)$.Since the dissociation constants for acetic acid $(K_a = 1.8 	imes 10^{-5})$ and ammonium hydroxide $(K_b = 1.8 	imes 10^{-5})$ are approximately equal,$pK_a \approx pK_b$.Therefore,$pH \approx 7$,making the solution almost neutral.

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