This document describes an experiment to determine the amount of acetic acid in different types of vinegar using titration. The student titrated samples of household vinegar, wine vinegar, and fruit vinegar with a sodium hydroxide solution of known concentration. They found that wine vinegar had the highest concentration of acetic acid at 72 g/L, followed by fruit vinegar at 48 g/L, and then household vinegar at 40.5 g/L. The document provides the aim, introduction, materials, procedure, observations, calculations, results, and precautions for the experiment.