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Digitale Medien

Ionization of aqueous toluic acids: Conductance and thermodynamics (1980)

Strong, Laurence E. ; Copeland, Thomas G. ; Darragh, Margaret ; [weitere]

Springer

Journal of solution chemistry 9 (1980), S. 109-128

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ISSN: 1572-8927

Schlagwort(e): Acid ; ortho-toluic ; meta-toluic ; para-toluic ; equilibrium constant ; ionization ; heat capacity ; enthalpy ; entropy ; conductivity ; aqueous solution ; Walden product

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract Conductivities of aqueous solutions ofortho-, meta-, andpara-toluic acids have been measured for the concentration range 0.1–2 millimolar and at 5° intervals from 5 to 100°C. At each temperature pK a(m) andA 0 have been calculated using the paired ion model recently described by Fuoss. Thermodynamic parameters have been calculated for the ionization of each acid, and Walden products for the anions. Results are discussed in terms of contributions to acidity by enthalpy and entropy changes as well as by hydration of the various solute species.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00644483

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