Author(s)

Vandanapu Jagannadham, Rachuru Sanjeev

Department of Chemistry, Mizan-Tepi University, Tepi Campus, Tepi, Ethiopia.
Department of Chemistry, Osmania University, Hyderabad, India.

A simple and easy laboratory protocol for the determination of the pK_a of mono, di and tri-basic weak acids is described in this paper by using arbitrarily simulated data as a function of pH. An equation compatible to Kaleidagraph program is derived and used in the program to determine the pK_a. The present protocol for the determination of the pK_a is useful in teaching chemistry experiments in a Physical-Organic Chemistry Laboratory.

pK_a; Kaleidagraph; Acid-Base Equilibriums

Jagannadham, V. and Sanjeev, R. (2012) Playing Around with “Kaleidagraph” Program for Determination of pK_a Values of Mono, Di and Tri Basic Acids in a Physical-Organic Chemistry Laboratory. Creative Education, 3, 380-382. doi: 10.4236/ce.2012.33060.