-Vinegar is a common household item containing acetic acid as well as some other chemicals.  This experiment is designed to determine the molar concentration of acetic acid in a sample of vinegar by titrating it with a standard solution of NaOH.
CH3COOH(aq) + NaOH(aq) -> CH3COONa(aq) + H2O(l)
-By adding the sodium hydroxide, which is a basic solution, to the acetic acid, which is an acidic solution, a neutralization reaction occurs.  An indicator known as phenolphthalein, is also added to the vinegar.  This indicator turns the solution to a dark pink when excess NaOH is added to make the solution more basic.


  • Experimentally determine the molar concentration of acetic acid in vinegar.


  • Neutralization Titration

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