AP EAMCET · Chemistry · Ionic Equilibrium
If the \(\mathrm{pH}\) of a buffer solution containing \(0.1 \mathrm{M}\) of monoacidic base and \(0.01 \mathrm{M}\) of its salt is 10.5 , the \(\mathrm{p} K_a\) of conjugate acid is
- A 9.5
- B 4.5
- C 3.5
- D 11.5
Answer & Solution
Correct Answer
(D) 11.5
Step-by-step Solution
Detailed explanation
Key Idea From Henderson-Hesselbalch equation \(p H=\mathrm{p} K_a+\log \frac{[\text { salt] }}{\text { [acid] }}\) \(\mathrm{pH}\) of a buffer solution \(=10.5\) \(\mathrm{p} K_a\) of this buffer solution can be calculated as:…
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