Question

What would happen to a titration curve if you start with a larger volume of acid compared to one with a smaller volume of acid?

Answer 1

A graph of pH as a function of added titrant is called a titration curve.titration curve can help to figure out when the equivalence point occurs and dissociation constants as well.

When there is a larger volume of acid,for an example, when NaOH is added,all of it will ionize and all OH- ions will react with acid producing Na+ and water.there will be remaining H+ and Cl- as the acid volume is greater.assume both acid and base concentrations are1.00moldm-3.

Thus;the solution will be acidic.the amount of H+ ion will be equal to the starting moles of H+ minus the amount that is neutralized.pH would be less as the H+ amount is high.

If the acid volume is less,all H+ are neutralized and there will be OH- ions in the solution. Thus,the solution is basic.when OH- concentration is high, the pH would be larger.

Therefore through these conditions we can derive the titration curve .

If acid is added to the titration flask then the pH curve starts from the top and if base is added from the burette,then the curve starts from bottom as ph is less with greater H+.