Modeling Titration Curves
Titration is a procedure used by chemists to determine the concentrations of dissolved chemical species. Chemistry teachers often use titrations to teach about acid/base behavior. The chemistry teacher uses the shapes of titration curves when explaining a variety of chemical behaviors. What a chemistry teacher describes as the buffering zone and the equivalence point of a titration curve, the mathematics teacher describes as critical points of a function. The titration curve represents a possible area for integration when teaching these two disciplines. We have developed a simple calculator program that generates a titration curve for any reacting acid species with a strong base (such as sodium hydroxide). The user enters these quantities: molarity of acid; dissociation constant for the acid (Ka); dissociation constant for water (Kw); volume of acid to be titrated; and molarity of titrant (such as NaOH). The calculator then generates a titration curve plotting pH vs. volume titrant added. Ka = 100 Ka = 1x10^-5 Ka = 1x10^-10 1. Ka = 100 2. Ka = 1x10^-5 3. Ka = 1x10^-10 PROGRAMS FOR DOWNLOADING The following programs are UUE encoded. TI-82 TI-83 Program for creating titration curves. TITRATE.82P.sit MAC TITRATE.82P.zip WIN TITRATE.82P.sit MAC TITRATE.83p.zip WIN Program written for calculation of first and second derivative of a titration curve. Written by Vernier Software. DERIVE.82p.sit MAC DERIVE.82p.zip WIN DERIVE.83p.sit MAC DERIVE.83p.zip WIN
calculator, chemistry, download, maths saved by: davidar
http://crippen.nevada.edu/calculators/activities/titrate.html
Titration is a procedure used by chemists to determine the concentrations of dissolved chemical species. Chemistry teachers often use titrations to teach about acid/base behavior. The chemistry teacher uses the shapes of titration curves when explaining a variety of chemical behaviors. What a chemistry teacher describes as the buffering zone and the equivalence point of a titration curve, the mathematics teacher describes as critical points of a function. The titration curve represents a possible area for integration when teaching these two disciplines. We have developed a simple calculator program that generates a titration curve for any reacting acid species with a strong base (such as sodium hydroxide). The user enters these quantities: molarity of acid; dissociation constant for the acid (Ka); dissociation constant for water (Kw); volume of acid to be titrated; and molarity of titrant (such as NaOH). The calculator then generates a titration curve plotting pH vs. volume titrant added. Ka = 100 Ka = 1x10^-5 Ka = 1x10^-10 1. Ka = 100 2. Ka = 1x10^-5 3. Ka = 1x10^-10 PROGRAMS FOR DOWNLOADING The following programs are UUE encoded. TI-82 TI-83 Program for creating titration curves. TITRATE.82P.sit MAC TITRATE.82P.zip WIN TITRATE.82P.sit MAC TITRATE.83p.zip WIN Program written for calculation of first and second derivative of a titration curve. Written by Vernier Software. DERIVE.82p.sit MAC DERIVE.82p.zip WIN DERIVE.83p.sit MAC DERIVE.83p.zip WIN
calculator, chemistry, download, maths saved by: davidar
http://crippen.nevada.edu/calculators/activities/titrate.html
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