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أرشيف الوسم : acid dissociation constant

acid dissociation constant

acid dissociation constant or acidity constant symbol: Ka; the thermodynamic equilibrium constant for the dissociation of an acid. For a dilute solution of a weak acid, HA, dissociating in water according to the equilibrium: HA + H2O  ↔ H3O+ + A–, Ka = (aH3O+ × aA–)/aHA where a is the …

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