Probing solute–solvent interactions of some bio-active solutes in aqueous barium nitrate solution on the basis of physicochemical contrivances

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, 0.05 mol dm−3 aqueous barium nitrate solutions at 298.15 K. Masson equation was employed for the limiting apparent molar volumes image experimental slopes image 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 image at infinite dilution were examined from the sound speed values.