At equilibrium, which of the two species with a halogen atom (green) is present

Question

At equilibrium, which of the two species with a halogen atom (green) is present in greater concentration, YOH or YO-?

Please explain the rational behind the question and answer.

As the electronegativity of Y increases, electron density shifts toward Y Protons are more readily transferred to H2O, leading to increased acid strength 2 The O-H bond 2 Electronegativity Dissociation of Y 3.0 2.8 2.5 2.1 Substance Y-OH Hypochlorous acid Hypobromous acid Hypoiodous acid Water C OH Br-OH I-OH H-OH constant K. = 3.0 × 10-8 K, = 2.5 × 10-9 Ka = 2.3 × 10-11 Kw = 1.0 × 10-14 Acidity of the hypohalous oxyacids (YOH) as a function of electronegativity of Y

Explanation / Answer

Yes answer is YOH, because these are weak acids , degree of dissociation is very less, thats why only small amount of YOH dissociated to Y- but compared to diffrent halogens, halogen which has more electronegative containing acid has more dissociation because resulting generated anion is stablized by electronegative element.

Electronegative order Cl> Br>I>H

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