ENTHALPIES OF INTERACTION OF GLYCINE WITH SOME AMIDES IN AQUEOUS-SOLUTIONS AT 298.15 K

The dissolution enthalpies of glycine in aqueous solutions of acetamid e, N-methylacetamide, N,N-dimethylacetamide, N-ethylformamide, N,N-die thylformamide and N,N-diethylacetamide were measured at 298.15 K. The enthalpic pair interaction coefficients of glycine zwitterion amide mo lecules were determined by using standard solution enthalpies of glyci ne in water and aqueous solutions of amides. The additivity of groups concept of Savage and Wood was used to estimate the contribution of ea ch of the functional groups of the studied amides.