Abstract

Apparent molar volume (ϕV), molar refraction (R), viscosity B-coefficient and adiabatic compressibility (ϕK) of some bio-active solutes such as glycine, l-alanine, and l-valine have been measured in 0.01, 0.03, 0.05moldm−3 aqueous barium nitrate solutions at 298.15K. Masson equation was employed for the limiting apparent molar volumes (ϕV0), experimental slopes (SV*) to interprete the solute–solvent and solute–solute interactions respectively. Molar refractions (R) have been calculated using the Lorentz–Lorenz equation. Jones–Dole equation was used to derive parameters A and B to interprete the interactions. Limiting apparent molar adiabatic compressibilities (ϕK0) at infinite dilution were examined from the sound speed values.

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