Title

e-Titrator, a Web-Based Titration Calculator for Chemical Education.

Presenter Information

Kevin Ngo

Document Type

Oral Presentation

Location

SURC Room 140

Start Date

15-5-2014

End Date

15-5-2014

Keywords

titration, e-Titrator, pH calculation

Abstract

Titration is an analytical chemistry technique commonly used to determine the concentration of an acidic or basic solution. In general and analytical chemistry courses, students are taught about the concept of chemical equilibrium and use this concept to determine the pH of mixed acidic and basic solutions. The pH calculation can be a great challenge for many students because it involves carefully choosing and solving the proper equations under various conditions. As a result, a web-based acid/base titration calculator (dubbed e-Titrator) with a user-friendly interface is created to help students learn these pH calculations. Students may also use the e-Titrator to double check the results of their own work. In the e-Titrator interface, users first enter the concentrations and other relevant information of the titrant and analyte. Then a virtual titration is easily done at the clicks of a “Titrate” button. The e-Titrator not only calculates the pH value of the mixed solutions but also provides a complete titration graph of pH vs. the volume of the titrant. In addition, details of the calculation can be displayed serving as a step-by-step tutorial. A mobile application will be developed in the future for the rapidly increasing number of users with smart phones.

Faculty Mentor(s)

Ge, Yingbin

Additional Mentoring Department

Chemistry

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May 15th, 4:30 PM May 15th, 4:50 PM

e-Titrator, a Web-Based Titration Calculator for Chemical Education.

SURC Room 140

Titration is an analytical chemistry technique commonly used to determine the concentration of an acidic or basic solution. In general and analytical chemistry courses, students are taught about the concept of chemical equilibrium and use this concept to determine the pH of mixed acidic and basic solutions. The pH calculation can be a great challenge for many students because it involves carefully choosing and solving the proper equations under various conditions. As a result, a web-based acid/base titration calculator (dubbed e-Titrator) with a user-friendly interface is created to help students learn these pH calculations. Students may also use the e-Titrator to double check the results of their own work. In the e-Titrator interface, users first enter the concentrations and other relevant information of the titrant and analyte. Then a virtual titration is easily done at the clicks of a “Titrate” button. The e-Titrator not only calculates the pH value of the mixed solutions but also provides a complete titration graph of pH vs. the volume of the titrant. In addition, details of the calculation can be displayed serving as a step-by-step tutorial. A mobile application will be developed in the future for the rapidly increasing number of users with smart phones.