The PH of a Buffered Solution

question 36

Multiple Choice

The pH of a buffered solution

• A) always equals 7.0
• B) may be acidic or basic depending on the buffer present
• C) changes drastically when a small amount of acid is added
• D) more than one correct response
• E) no correct response

---

Definitions:

Anion

A particle with one or more units of negative charge, such as a chloride ion (Cl-) or hydroxide ion (OH-). Compare with cation.

Isotopes

Atoms of the same element that differ in the number of neutrons within their nuclei.

Ions

Atoms or molecules that have gained or lost one or more electrons, thus acquiring a charge.

Acid

A substance that is a hydrogen ion (proton) donor; acids unite with bases to form salts. Compare with base.