For each titration you will obtain a measured value table and two graphs. The measured value table
consists of the following : volume of HCl in mL, DV, pH, DpH and derivative DpH/DV. The first
graph is a plot of pH vs mL of 0.1 M HCl added. The steepest parts of the plot indicate the two
equivalence points (indicated by the dotted lines). The second graph is a first derivative plot of
DpH/DmL vs mL of 0.1 M HCl added. The two equivalence points are determined fr

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I already figured out R3 for 3 samples, which are -0.239 mmol, -0.238 mmol and -0.239 mmol.

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