how many mL of LiOH?

Question

In the titration of 55.0 mL of 0.400 M HCOOH with 0.150 M LiOH, how many mL of LiOH are required to reach the equivalence point?

Answer 1

the equivalence point is when the moles of acid= moles of base

the number of moles of acid (HCOOH) we have is 0.4 M x 0.055L=0.0022 moles

therefore at the equivance point we also have 0.0022 moles of the base (LiOH)

0.0022 mol x 1L/0.15 mol=.147 L= 147 mL LiOH