Conductometric Studies on Temperature Effects on Dissociation Properties of Substituted Benzoic Acid in Amphiprotic Soluents.

• Main Authors: Chiou Shien-Yih, 邱順溢
• Other Authors: Hao Hsieh-Sui
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/00284859823176462635

碩士 === 淡江大學 === 化學學系 === 82 === The major works of this research is to study the temperature effect on the dissociation properties of benzoic acid and its derivatives on amphiprotic solvent. Ethanol used as amphiprotic solvent, benzoic acid and 9 derivatives used as solutes. The Ka values of solutions are calculated from the specific conductance at various temperature. Suntex 17-A Conductometer is the main equipment of this study, and all the experimental data are calculated and plotted by a powerful computer software named "ORIGIN". Enthalpy, Entropy and Free Energy in these dissociation processes are temperature dependent, and all the polynomial coefficient are calculated and plotted by computer. The relationships among the physical properties of solvent, Ka values of solutes and temperature are widely discussed in this paper.