1. Commercial vinegar is a solution of acetic acid in water. How would you determine which brand of vinegar contains more acetic acid in a given volume of vinegar?

Answer 1

Titrate the different brands of vinegar with a base such as NaOH. An easier way is to look on the bottle; the label usually has the percent acetic acid listed.

Answer 2

I think you have to answer this is in a more laboratoric solution.