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Question: Answered & Verified by Expert
What is the pKa value for ammonia, and what pH is expected for a buffer solution formed by equal molar concentrations of ammonia and ammonium chloride?
ChemistryIonic EquilibriumNEET
Options:
  • A pKa = 9.25, pH ≈ 9.25
  • B pKa = 4.76, pH ≈ 4.76
  • C pKa = 7.00, pH ≈ 7.00
  • D pKa = 3.00, pH ≈ 3.00
Solution:
1485 Upvotes Verified Answer
The correct answer is: pKa = 9.25, pH ≈ 9.25
The pKa value for ammonia is 9.25, and the pH of a buffer solution formed by equal molar concentrations of ammonia and ammonium chloride will be around 9.25.

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