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Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumpH of Polyprotic Acids and BasesMedium2 minQB

ChemistryMediumsingle choice

Carbonic acid, $H_{2} CO_{3}$ , is a diprotic acid for which $K_{1} = 1 0^{- 7}$ and $K_{2} = 1 0^{- 11}$ . Which solution will produce a pH closest to 9 ?

Options:

Answer:

Solution:

pH = $\frac{1}{2} [P_{k_{a_{1}}} + P_{k_{a_{2}}}] = \frac{1}{2} [7 + 11] = 9$

Stream:JEESubject:ChemistryTopic:Ionic EquilibriumSubtopic:pH of Polyprotic Acids and Bases

⏱ 2mℹ️ Source: QB

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