Chemistry Practice Problems Buffer Practice Problems Solution: Of the following solutions, which has the greatest...

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Solution: Of the following solutions, which has the greatest buffering capacity?a. 0.296 M HF and 0.122 M NaFb. 0.195 M HF and 8.02 x 10−2 M NaFc. 0.591 M HF and 0.243 M NaFd. 1.18 M HF and 0.486 M NaFe. They are all buffer solutions and would all have the same capacity.

Problem

Of the following solutions, which has the greatest buffering capacity?

a. 0.296 M HF and 0.122 M NaF

b. 0.195 M HF and 8.02 x 10−2 M NaF

c. 0.591 M HF and 0.243 M NaF

d. 1.18 M HF and 0.486 M NaF

e. They are all buffer solutions and would all have the same capacity.

Solution
  • Recall that an ideal buffer pairs are usually:

Weak acid + its conjugate base

Weak base+ its conjugate acid

High concentrated WA + Strong base

High concentrated WB + Strong acid

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