- pH calculations of strong, weak an multiprotic acids, bases, salts and their buffers and mixtures (up to 30 species at once) in aqueous medium;
- Analysis of pH vs. volume of titrant data of simulated and real potentiometric titration curves by two methods: i) graphical representation of curves, assisted by cubic splines interpolation and smoothing of derivative curves for accurate evaluation of inflections (end-points); ii) determination of concentrations and refinement of pKa values by multiple nonlinear regression (based on the Solver supplement of Excel), essential for difficult titrations with undefined inflections, for example, acid rain.
- Simulation and overlay of acid-base titration curves of any complexity, without or with simulated random experimental error in pH and/or volume. Valuable for teaching, generation of unlimited titration exercises and evaluation of the feasibility and accuracy of new titrations.
- Generation of protonation diagrams and distribution curves of the equilibrium species of acids and bases as a function of pH or of added volume of titrant.
All necessary spreadsheets with graphics, examples, instructions, database and visual basic macros are contained in the single curtipot_.xls file. Simply unzip, open with Microsoft Excel (at medium security level), activate macros and start learning and working. No install/uninstall required, all macros are removed when closing file. The 1992 CurTiPot for DOS (with activity coefficient calculation) runs in Windows without Excel.
- Language: English, Portuguese
- Size: 305 Kb
- License: Freeware
- Cost: Free
- Updated: 2006-08-14 21:51:31
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| • base • analytical chemistry • buffer • acid • potentiometry • visual indicator • dissociation constant | • chemical equilibrium • simulation • hydrolysis • glass electrode • protonation • titration |
Latest User Reviews:
the software is a excelent tool for teaching analytical chemistry
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