A 2500-ML Sample of Propanoic Acid,CH₃CH₂COOH,of Unknown Concentration Was Titrated with with 0.111

Multiple Choice

A 25.00-mL sample of propanoic acid,CH₃CH₂COOH,of unknown concentration was titrated with 0.111 M KOH.The equivalence point was reached when 44.54 mL of base had been added.What is the concentration of the propanoate ion at the equivalence point?

A) 0.111 M
B) 0.0711 M
C) 0.198 M
D) 0.128 M
E) 0.147 M