Article
2022

The Error of Approximate Calculations of the Weak Binary Electrolyte Dissociation Degree


A. V. Grebennik A. V. Grebennik , O. A. Raitman O. A. Raitman
Russian Journal of Electrochemistry
https://doi.org/10.1134/S1023193522040061
Abstract / Full Text

The error of the weak binary electrolyte dissociation degree calculations using the approximate formula \(\alpha = \sqrt {{{{{K}_{c}}} \mathord{\left/ {\vphantom {{{{K}_{c}}} c}} \right. \kern-0em} c}} \) and by the Ostwald dilution law is analyzed. The expressions for the relative error are derived and the limits of application for the specified approximations are set up, in particular, when the solvent self-dissociation must be considered.

Author information
  • Mendeleev University of Chemical Technology, 125190, Moscow, Russia

    A. V. Grebennik & O. A. Raitman

  • Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071, Moscow, Russia

    O. A. Raitman

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