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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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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,, 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:

Article in PDF format (404 KB) HTML format

Issue date: August 2, 2002

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