100 mL of a 0.1 mM buffer solution made from acetic acid and sodium acetate with pH 5.0 is diluted to 1 L. What is the pH of the diluted solution?
2 answers
In round numbers the pH is 5.0. You dilute the base along with the acid and by the same amount; therefore, the ratio of base to acid stays the same and the pH doesn't change. Dilution has no effect on the pH of a buffer but of course we all know that has limitations.
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