A solution is \( 0.1 \mathrm{M} \) in \( \mathrm{CH}_{3} \mathrm{COOH} \) and \( 0.1-\mathrm{M} ...

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A solution is \( 0.1 \mathrm{M} \) in \( \mathrm{CH}_{3} \mathrm{COOH} \) and \( 0.1-\mathrm{M} \) in \( \mathrm{CH}_{3} \mathrm{COONa} \). Which of the following will change its \( \mathrm{pH} \) Aignificantly?
(A) Addition of small amount of water
(B) Addition of small amount of \( \mathrm{HCl} \)
(C) Addition of small amount of \( \mathrm{NaOH} \)
(D) None will change the \( \mathrm{pH} \) significantly.
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