Question

Which of the following is TRUE?

A.) A buffer is most resistant to pH change when [acid] = [conjugate base]

B.) The most effective buffers are those of strong acid/strong base pairs.

C.) An effective buffer has a [base]/[acid] ratio in the range of 10 - 100

D.) A buffer can not be destroyed by adding too much strong base. It can only be destroyed by adding too much strong acid.

E.) An effective buffer has very small absolute concentrations of acid and conjugate base.

Answer 1

Answer:

A buffer is most resistant to pH change when [acid] = [conjugate base]

Explanation:

My best bet is A

Answer 2

The true statement is a buffer is most resistant to pH change when [acid] = [conjugate base].

What is a Buffer?

This is the solution which contains a weak acid and its conjugate base and vice versa. It is also able to resist changes in the pH of a substance.

Option A is the most appropriate choice because a buffer works effectively when there is the presence of an acid and its conjugate base or vice versa.

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