Using STELLA as a Simulation Tool for Chemical Education

Using STELLA as a Simulation Tool for Chemical Education Noel MottaUPR-Río PiedrasChemistry Department

STELLA Application Scenarios P(t, X(t), Y, Z, …) P t ó X(t) LEVERAGE !!!!! Data on P is available, but do not know how X, Y, Z affect it. Data on P is not available, nor do not know how X, Y, Z affect it. Data on P is available, and know how X, Y, Z affect it.

CNaOH = 0.100 M pH vs VNaOH 2.345 VHA = 50.00 mL HAac CHA = 0.0500 M pKHA = 5.00 NaOH + HA H2O + A- + Na+ HA + H2O H3O+ + A- 2 H2OH3O+ + OH- Ka Kw

Simulations developed or being developed by author Acid-Base Titration Chemical Kinetics Chemical Equilibrium Chromatography (on the way) Cyclic Voltammetry (on the way) Density Flow Injection Analysis Heat transfer Kinetic vs Thermodynamic control in organic reactions (on the way) Stoichiometry

Simulations…… Allow the creation of situations for inductive thinking processes to take place. Promote the process of identifying variables and its interrelations, and the observation of their effect on the phenomenon or properties under study. Reinforce the idea of using the experiment to acquire new knowledge. Can be used to develop experimental design skills.

With simulations…… Get results that are time/cost effective. Avoid real experimental noise. Create active learning environments.

Implementation Strategies Conceptual Framework Simulation Concentric Model Excentric Model Simulation Conceptual Framework

Acknowledgements Javier Figueroa AMP Joaquín Medín

Using STELLA as a Simulation Tool for Chemical Education

Using STELLA as a Simulation Tool for Chemical Education

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