Exams › JEE Main › Chemistry
In a buffer solution containing equal concentration of B⁻ and HB, the Kb for B⁻ is 10⁻¹⁰. The pH of buffer solution is:
- 10
- 7
- 6
- 4
Correct answer: 7
Solution
The pH of a buffer solution can be calculated using the Henderson-Hasselbalch equation. Since the concentrations of B⁻ and HB are equal, the pH will be equal to the pKa of B⁻.
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