Adiabatic compressibility, apparent molal volume, apparent molal compressibility and solvation number of substituted 2-oxo-2-H-chromene-3- carbohydrazide derivatives in 70% DMF-Water

Ultrasonic study of substituted 2-oxo-2-H-chromene-3-carbohydrazide derivatives in 70% DMF-water at 305K is done. The experimental data is used to calculate adiabatic compressibility, apparent molal volume, apparent molal compressibility and solvation number. These acoustic parameters are used to explain the interaction taking place in the solutions.