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Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumpH of Strong and Weak Acids and BasesHard2 minPYQ_2001

ChemistryHardsingle choice

The $pH$ of aqueous solution of ammonium formate is $(p K_{a}$ of $HCOOH = 3.8$ and $p K_{b}$ of $NH_{3} = 4.8)$

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Answer:

Solution:

For a salt of weak acid and weak base, its $pH = 7 + \frac{1}{2} p K_{a} - \frac{1}{2} p K_{b}$ $= 7 + \frac{1}{2} \times 3.8 - \frac{1}{2} \times 4.8 = 6.5$

Stream:AIIMSSubject:ChemistryTopic:Ionic EquilibriumSubtopic:pH of Strong and Weak Acids and Bases

⏱ 2mℹ️ Source: PYQ_2001

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