1. Estimate the pH of a buffer consisting of 0.4 M acetic acid and 0.3 M...

Question

Question

1. Estimate the pH of a buffer consisting of 0.4 M acetic acid and 0.3 M acetate. The pKa of acetic is 4.75.

a) Why is the pH approximately equal to the pKa?

b) Will the exact pH be larger or smaller than the pKa? Explain.

2. How would you use a pH titration to determine the concentration of a weak base?

a) What kind of substance would you titrate with?

b) What is the major species at the beginning of the titration?

c) What is the major species at the equivalence point?

Answer 1

Answer #1

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Answer 2

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