A 0.500 L acetate buffer contains 0.40 M CH COOH and 0.40 M CH COO
CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases
Problem
A 0.500 L acetate buffer contains 0.40 M CH3COOH and 0.40 M CH3COO−. The buffer is diluted to 5.00 L with distilled water and then receives 0.0020 mol of NaOH. Compared with adding the same amount of NaOH to the original undiluted buffer, what happens to the magnitude and direction of the pH change in the diluted buffer?
(a) The diluted buffer undergoes a greater increase in pH.
(b) The diluted buffer undergoes a smaller increase in pH.
(c) The diluted buffer undergoes approximately the same small increase in pH as the undiluted buffer.
(d) The pH of the diluted buffer does not change at all.