The pH of a buffer solution is dependent on单项选择题

题目图片
A

a. the concentration of the buffer and the ratio b/a of the conjugate pair constituents

B

b. the concentration of the buffer and the pKa value of the weak acid

C

c. the pKa value of the weak acid and the ratio b/a of the conjugate pair constituents

D

d. all of the above

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A 1.00 L buffer solution is 0.250 M in HF and 0.250 M in Na. Calculate the pH of the solution after the addition of 100.0 mL of 1.00 M HCl. The Ka for HF is 3.5 × 10-4.

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