How would you go about determining the concentration of an acetic acid solution in vinegar?

1 Answer
Jun 8, 2017

Answer:

By titration with a standardized base................

Explanation:

So take your vinegar which is approx. #1.0*mol*L^-1# with respect to acetic acid, and titrate #1.0*mL# aliquots with say #0.1*mol*L^-1# volumes of standardized base, of #0.0500*mol*L^-1# to #0.100*mol*L^-1# concentrations. Use a suitable indicator, i.e. phenolphthalein, and you reach a stoichiometric end-point with #10-20*mL# of titrant.

The reaction is...........

#HOAc(aq) +NaOH(aq) rarr Na^(+)""^(-)OAc(aq) + H_2O(l)#