Why it is quantitatively not acceptable to titrate each of the vinegar samples?

Answer 1

This is because the readings of the amount of NaOH needed are only valid up to the point when the color pink appears in the entire solution. Titrating beyond that point would produce erroneous values of NaOH volume and molarity of acetic acid.

Answer 2

The readings of the amount of NaOH used are only valid up to the point when the color pink appears persistently in the solution. Titrating to the dark pink endpoint would produce erroneous values of NaOH volume and molarity of acetic acid.

Answer 3

Titrating beyond the point the color pink persistently appears in the solution would mean taking erroneous values of volume of NaOH used. If the solution goes from pink to dark red, the molarity of acetic acid computed would also be incorrect.

Answer 4

Titrating beyond the point the color pink persistently appears in the solution would mean taking erroneous values of volume of NaOH used. The molarity of acetic acid computed would also be wrong.

Answer 5

As soon as the color changes to pink and remains pink, the endpoint has been reached. if you titrate past the endpoint, to where the color becomes dark read, this is going to mess up your calculations on volume of NaOH added and M of acetic acid in vinegar.

Answer 6

Titrating each vinegar sample individually would require a large amount of time and resources. By preparing a standardized solution of base and titrating several samples at once, you can ensure more efficient and accurate results. It also minimizes variability in the titration process.