Weak Acid Titration When a 18.0 mL sample of a monoprotic weak acid is titrated with 0.10 M NaOH, it generates the titration curve shown below Weak Acid titrated with 0.10 M NaOH 12 t0 15 20 25 Volume of 0.10 M NaOH a) What is the molar concentration of the original sample of weak acid? b) What is the Ka for this weak acid?