A titration of an unknown monoprotic weak acid with a strong monoprotic base required 10.00 mL to reach the equivalence point. If the pH was 5 after 5.00 mL of strong base had been added, what is the pKa of the unknown acid?A titration of an unknown monoprotic weak acid with a strong monoprotic base required 10.00 mL to reach the equivalence point. If the pH was 5 after 5.00 mL of strong base had been added, what is the pKa of the unknown acid?