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Determination Of An Unknown Amino Acid From Titration
Beginning of paper
Abstract
Experiment 11 used a titration curve to determine the identity of an
unknown amino acid. The initial pH of the solution was 1.96, and the pKa’s
found experimentally were 2.0, 4.0, and 9.85. The accepted pKa values were
found to be 2.10, 4.07, and 9.47. The molecular weight was calculated to be
176.3 while the accepted value was foun ....
Middle of paper
....ee fig. 3), an example of a
basic salt form.
Fig. 2
Fig. 3
Due to the nature of amino acids, a titration curve can be employed to identify
an unknown amino acid. A titration curve is the plot of the pH versus the volume
of titrant used. In the case of amino acids, the titrant will be both an acid
and a base. The acid is a useful tool because.... |
| Word count: 1634 |
Page count: 6 |
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