Chemistry-pH & Buffer Solutions
NEET Chemistry pH & Buffer Solutions MCQ Question
Type: MCQ-diagram based-Easy-Class 11
Refer to the diagram of a buffer solution setup. If the concentration of sodium acetate is equal to the concentration of acetic acid in the buffer solution, what is the pH of the buffer?
A
pH = pKa of acetic acid
B
pH = 7
C
pH = 0
D
pH = 14
Correct Answer
Option A
Detailed Explanation
According to the Henderson–Hasselbalch equation, when the concentration of the conjugate base (sodium acetate) is equal to the concentration of the acid (acetic acid), the pH of the buffer is equal to the pKa of the acid.
Found an issue with this question?