Q 2613512440.     Which of the following solutions when added to 1 L of a 0.1 M `CH_3COOH` solution will.cause no change in either the degree of dissociation of `CH_3COOH` or the pH of the solution. `K_a = 1.8 xx 10^-5` for `CH_3COOH` ?

(This question may have multiple correct answers)

A 3 mM HCOOH (`K_a = 6 xx 10^-4`)
B 0.1 M `CH_3COONa`
C 1.34 mM HCI
D 0.1 M `CH_3COOH`

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