User:Jacob Esenther/Notebook/Chem 571/2014/09/03

Biomaterials Design Lab

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Objective Finish Second Round of Titrations Description Finish the Second Round of Titration Initially only 6 titrant data points were taken in order to determine where the inflection point would be. The next round of titrations works in smaller increments to set up a more accurate curve Amino Acid Titration Data Note - The first calibration of the pH detector did not register. These are single calibration titrations. Note - All 2nd trials were preformed with 1mL 1M HCl rather than the original 10mL. During the second titration, 15mL of DI water was used During the second titration, 20mL of DI water was used During the first titration, 2mL of 1M HCl and 20mL of DI water was used There is no pH data for the first titration because too much HCl was added During the second titration, the mass of Tryptophan was cut from 0.6044g to 0.2015g to make dissolving in solution more practical 1mL of HCl and 27mL of DI water were used Amino Acid Titration Curves Notes N/A