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Löslichkeiten und Aktivitätskoeffizienten von H 2 S in Elektrolytmischungen
Author(s) -
Gamsjäger H.,
Schindler P.
Publication year - 1969
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19690520603
Subject(s) - chemistry , activity coefficient , molality , electrolyte , ionic strength , solubility , aqueous solution , mixing (physics) , thermodynamics , inorganic chemistry , physics , electrode , quantum mechanics
From solubility measurements on hydrogen sulfide in aqueous solutions of the composition [H + ] = H M, [Na + ] = ( I — H ) M = A M, [Cl − ] = I M at 25°C, the molar and molal activity coefficients of H 2 S have been calculated. The activity coefficients of H 2 S in the electrolyte mixtures have been found to be additive functions of the activity coefficients in the individual electrolyte solutions at the same ionic strength. This result is predicted by the internal pressure theory of salt effects on non‐electrolyte activity coefficients, provided that the volume change upon mixing two electrolyte solutions of the same ionic strength is zero.