Class: BE-210
Group: R6
Members: Rebecca Lai, Rupesh Patel, Nick Rose
Date: Spring 1997
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Abstract:
The level of pH, the measure of acid concentration, plays an important role in living systems. In fact, a slight variation in pH can cause functional changes in the human body and possibly even be fatal. The purpose of this experiment is to conduct acid-base chemical reactions to show equilibrium effects upon titration. In our experiment we used titration techniques to cross-standardize NaOH with HCl. We found that the average HCl concentration to be 1.99M + 0.0061M and the average NaOH concentration to be 2.01M + 0.0014M. In addition, we confirmed the pKa values for the Na2CO3 - HCl titration by creating a titration curve and compared our inflection points with those in the literature. Finally, we calculated the pKa' and pKa" values of the amino acid Serine to be 1.03 and 11.05, respectively, and compared them to literature values finding them to be relatively accurate.