Purpose: The purpose of this experiment is to determine the percent acetic acid in a sample of vinegar by use of an acid-base titration.

Hypothesis: If a sample of vinegar reacts with sodium hydroxide, then the mass of acetic acid present can be determined by the method of titration.

Variables

Independent: Mass of vinegar

Dependent: Volume of base used

Control: Accepted Percentage acetic acid in vinegar

Materials:  buret, balance, graduated cylinder, magnetic stirrer, acid and base solutions, indicator, funnel, DI water, erlenmeyer flask, ring stand, buret clamps

Safety: See Lab handout

Procedure: See Lab handout

Background Information: See Lab handout