Question

Which of these solutions would have the highest buffer capacity?

A. solution that is 1 M HF and 1 M F-
B. A solution that is 0.1 M HF and 0.1 M F-
C. A solution that is 0.01 M HF and 0.01 M F-

Answer 1

Solution A, which is 1 M hydrofluoric acid (HF) and 1 M fluoride (F-), would have the highest buffer capacity because it has the highest concentrations of the buffering components.

Step-by-step explanation:

The question asks which solution among the given options would have the highest buffer capacity. A buffer solution is a system that minimizes pH changes upon the addition of small amounts of acid or base. The capacity of a buffer is dependent on the concentrations of the weak acid and its conjugate base present in the solution.

Among the given options:

• Solution A: 1 M HF and 1 M F-
• Solution B: 0.1 M HF and 0.1 M F-
• Solution C: 0.01 M HF and 0.01 M F-

The solution with the highest buffer capacity would be the one with the higher concentrations of the buffering components, provided that the ratio of the weak acid to its conjugate base is approximately equal.

Therefore, Solution A, which is 1 M HF and 1 M F-, will have the highest buffer capacity because it contains more hydrofluoric acid and fluoride ion compared to the other solutions.