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MHT CET Chemistry question

ChemistryEquilibriumMHT CET

A buffer solution is prepared in which the conc. of is 0.30 M and the concentration of is 0.20 M. If the equilibrium constant, for equals , what is the pH of this solution?

Answer: (C)

Solution

K_b\log$ = 4.74 + =

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Question ID VK-059062