Reminescences

https://doi.org/10.5562/cca4063

Mathematica as Equation Solver in Chemistry

Igor Novak ; Charles Sturt University, Orange, NSW 2800, Australia *

* Corresponding author.

Abstract

We describe a graphical method for solving a wide range of algebraic equations in one unknown. The method can be used to solve problems in acid/base equilibria, properties of real gases, general equilibria, solubility products and chemical kinetics. The graphical method employs Mathematica software to solve equations by plotting two curves. This is different to current practices which use numerical (iterative) method or complex formulae.
The graphical method is easy to apply and requires minimal mathematical manipulations. It introduces students to the use of powerful computer algebra software. The method works not only for polynomial type equations (often encountered in acid/base or general equilibria or real gas equations), but also for non-polynomial equations involving exponential terms. The graphical method implemented by Mathematica represents a “graphing calculator”. The calculator is a general equilibrium solver for single equilibrium systems and allows students to calculate equilibrium concentrations without recourse to complex analytical formulae or numerical methods.

Keywords

teaching physical chemistry or general chemistry; calculator-based learning; computer algebra software

Hrčak ID:

322659

URI

https://hrcak.srce.hr/322659

Publication date:

21.11.2024.

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