NEET Chemistry pH & Buffer Solutions MCQ Question
Consider a diagram depicting the hydrolysis of a salt formed from a weak acid and weak base, such as ammonium acetate. The diagram shows the equilibrium reactions involved during hydrolysis. Which of the following correctly describes the pH of the solution at equilibrium?
The pH is determined by the equation pH = 7 + ½ (pKa - pKb).
The pH is always greater than 7 because both acid and base are weak.
The pH solely depends on the concentration of ammonium acetate.
The pH is 7 because the solution is neutral.
Correct Answer
Detailed Explanation
The pH of a solution formed from a weak acid and weak base, such as ammonium acetate, is calculated using the equation pH = 7 + ½ (pKa - pKb).
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