Given the following experimental data, calculate the molarity and the p K a of the acid analyte (HA) in the titration, if the balance neutralization…

1. Given the following experimental data, calculate the molarity and the pKa of the acid analyte (HA) in the titration, if the balance neutralization reaction is
HA + NaOH à NaA + H2O.
A pH reading of 3.65 was obtained when 13.0 mL of 0.413 M NaOH was added to the 25.0 mL analyte.
The endpoint was achieved when 31.25 mL of NaOH had been added.