Several Applications of Advanced Scientific Calculators: Nonlinear Least-Squares Analysis and Titration of a Weak Acid

TCE

The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 7 Issue 4 (2002) pp 233-237

Several Applications of Advanced Scientific Calculators: Nonlinear Least-Squares Analysis and Titration of a Weak Acid

Myung-Hoon Kim,^*,† Suw-Young Ly,^‡ and Tae-Kee Hong^§

Department of Science, Georgia Perimeter College, Dunwoody Campus, Dunwoody, GA, USA 30338, mkim@gpc.edu,^† Department of Fine Chemistry, School of Applied Chemical Engineering, Seoul National University of Technology, Seoul, Korea 139-743,^‡ and Department of Chemistry, Hanseo University, Seosan, Choongnam, 356-820 Korea^§
Received March 12, 2002. Accepted May 22, 2002

Published online: 26 July 2002

Abstract. Several advanced applications of scientific graphing calculators are demonstrated. These include (a) nonlinear least squares analysis and (b) construction of titration curves for weak acids with a strong base. Stepwise instructions for obtaining the titration curves with TI-80 Series Calculators are presented. Immediate display of graphical results of a solution from a quantitative chemical problem in a classroom setting is one of the advantages of the advanced scientific calculator.

Key Words: Computers in Chemistry; general chemistry; physical chemistry; titrations; curve fitting

(*) Corresponding author. (E-mail: mkim@gpc.edu)

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