An experiment similar to the one in this module was performed to determine the solubility and the solubility product constant of gallic acid, a monoprotic organic acid (molar mass = 170.12 g/mol). The equilibrium involved is:
C6H5O3COOH (s) --> C6H5O3COO- (aq) + H+ (aq)
Titrations using 0.114 M NaOH were performed, and the following data were obtained:
temperature of solution = 20.2oC
volume of acid solution titrated = 25.00 mL
volume of NaOH solution used = 14.61 mL