Science Questions and Answers

Start Your Free Trial

What is the final volume when 100 mL of 0.200 M acetic acid solution is titrated to the equivalence point with 0.0400 M Ba(OH)2?

Expert Answers info

ncchemist eNotes educator | Certified Educator

calendarEducator since 2010

write1,405 answers

starTop subjects are Science, Math, and Social Sciences

We need to find the total amount of liquid in the system at the equivalence point.  100 mL of 0.2 M acetic acid has 0.02 moles of acetic acid.  For every mole of acid we need half the number of moles of Ba(OH)2 since there are two moles of OH per mole of the base.  So we need 0.01 moles of Ba(OH)2 to reach the equivalence point.  This would mean that we need 0.01/0.04 = 0.25 liters or 250 mL of base solution.  So this is a total of 100 mL + 250 mL = 350 mL.  That means 350 mL is the final volume at the equivalence point.

check Approved by eNotes Editorial