If you overshoot the endpoint of the acetic acid/NaOH titration, what is the expected effect on the calculated concentration of acetic acid? Will the calculated concentration of acetic acid be higher or lower than it should be?

Question

jfraser · Answer

The concentration of acetic acid will be higher than it should be because it has been titrated too much and added too much sodium hydroxide therefore the moles of the acid will be too high.

anonymous · Answer

The NaOH is what kept being added past the equivalence point so there is a higher volume of NaOH than there should be but wouldn't the number of moles of acetic acid remain the same?

preetha · Answer

Lets say you had 10 ml of of Ac Acid. .   YOu add 1M NaOH, and you should have stopped when you added 10 mL of NaOH. But you made a mistake and added 20ml.  So now you perform the calculations and you will get the molarity of AcAcid to be twice that of NaOH.  So your calculated acid conc will be more than the actual concentration.