Neutralize an acid

Question

46.3 mL of a 0.0999 M solution of this diprotic acid, HOOC(CH2)2COOH, is titrated to the equivalence point with 0.15 M KOH. Write the balanced equation and determine the volume of the base needed to completely neutralize the acid.

Answer 1

HOHOOC(CH2)2COOH + 2KOH => 2H2O + KOOC(CH2)2COOK

moles acid = 0.0463 L x 0.0999 mol/L = 0.004625 moles

vol base = 0.004625 mol acid x 2 mol base/mol acid x 1 L base/0.15 mol = 0.0617 L. = 61.7 ml = 62 ml of base