Journal of Chemistry / 2019 / Article / Tab 1

Research Article

Natural Plant Extracts as Acid-Base Indicator and Determination of Their pKa Value

Table 1

Added volumes of 0.1 M Na2HPO4 solution and 0.1 M KH2PO4 solution.

Flask no.KH2PO4 (mL)Na2HPO4 (mL)

110.00.0
220.01.0
310.02.0
420.010.0
510.010.0
610.020.0
72.010.0
82.020.0
91.020.0
100.010.0