Determination of Citric Acid is a fundamental analytical chemistry experiment that demonstrates how acid-base titration is used to measure citric acid concentration in lemon-flavored soda beverages. Using a standard sodium hydroxide solution and phenolphthalein indicator, students identify the endpoint of neutralization and calculate the concentration of citric acid through volumetric analysis. The experiment reinforces essential laboratory concepts, including standard solutions, quantitative analysis, neutralization reactions, titration calculations, and data interpretation. By applying theoretical knowledge to a practical beverage analysis, learners gain valuable experience in analytical techniques widely used in food quality control, research laboratories, and chemistry education.