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MHT CET 2023 Chemistry question

ChemistryEquilibriumMHT CET 2023

What is the molar concentration of acetic acid if value of it's dissociation constant is and degree of dissociation is 0.02?

Answer: (B)

Solution

For a weak acid with small degree of dissociation, (more exactly ). So \dfrac{K_a}{α^2}\dfrac{1.8×10^{-5}}{(0.02)^2}$ =

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Question ID VK-097904