Consider an Acetate Buffer, Initially at the Same PH as Its

question 68

Multiple Choice

Consider an acetate buffer, initially at the same pH as its pK_a (4.76) . When sodium hydroxide (NaOH) is mixed with this buffer, the:

• A) pH remains constant.
• B) pH rises more than if an equal amount of NaOH is added to an acetate buffer initially at pH 6.76.
• C) pH rises more than if an equal amount of NaOH is added to unbuffered water at pH 4.76.
• D) ratio of acetic acid to sodium acetate in the buffer falls.
• E) sodium acetate formed precipitates because it is less soluble than acetic acid.

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