The derivation of this equation starts from the Poisson-Boltzmann equation, which is Taylor-expanded and successively truncated.
The Bates-Guggenheim convention provides a conventional method to find standard pH values based on this equation. The Bronsted-Bjerrum equation in kinetics is derived from the assumptions of this model. An empirically-based modification to this equation that involves a linear term with slope -0.15 is called the Davies equation. The derivation of this equation starts from the Poisson-Boltzmann equation, which is Taylor-expanded and successively truncated. For solutions with concentrations greater than (*) 0.1 molar, the Pitzer equations are used instead of this equation. In the derivation of this equation, effects from electrostriction are ignored, and individual ions surrounding a central ion are represented by a statistically-averaged cloud of constant charge density with a minimum distance of closest approach. For 10 points, name this doubly-eponymous equation which models deviation from ideality in aqueous salts solutions and is used to find activity coefficients of ionic solutions.
The Bates-Guggenheim convention provides a conventional method to find standard pH values based on this equation.
Debye-Huckel equation [accept: Debye-Huckel limiting law/theory]