Acid Dissociation Constant

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Acid Dissociation Constant

A quantitative measure of an acid’s strength, which corresponds to an equilibrium constant for the dissociation of a weak acid [A-] into [H+] and conjugate base in an aqueous solution.
ADC = [H+][A-]/[HA]
References in periodicals archive ?
They organized the material along the same outline as well, discussing the formation and properties of gibbsite, describing the experimental data that constrain surface-complexation models and the procedure followed to extract model constants from the data, examining the potentiometric titration data fitting and surface acidity constant extraction for gibbsite, presenting the available cation and anion sorption data for gibbsite and the results of fitting the data with the generalized model, and investigating linear free energy relationships for identifying trends in sorption data and predicting surface-complexation constants for conditions not yet studied experimentally.
These may complicate matter further by absorbing the acids, however it is still possible to predict the behaviour of the system if all the acidity constants, partition coefficients and the overall composition are known.