TITLE:
Playing Around with “Kaleidagraph” Program for Determination of pKa Values of Mono, Di and Tri Basic Acids in a Physical-Organic Chemistry Laboratory
AUTHORS:
Vandanapu Jagannadham, Rachuru Sanjeev
KEYWORDS:
pKa; Kaleidagraph; Acid-Base Equilibriums
JOURNAL NAME:
Creative Education,
Vol.3 No.3,
June
20,
2012
ABSTRACT: A simple and easy laboratory protocol for the determination of the pKa 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 pKa. The present protocol for the determination of the pKa is useful in teaching chemistry experiments in a Physical-Organic Chemistry Laboratory.