Quantitative Estimation of Acid and Base from Locally Available Materials by Using Titration Method

Purpose: In this paper, the estimation acid and base from locally available materials were studied. The main purpose of this research was to study to implement the use of locally available materials in secondary education especially in developing countries like Tanzania, in case of titration process; then to develop an idea on extracting locally available material (Acid from Lemons and Base from wood ashes) during the titration process in secondary education; and also to impart ability to the student on conducting titration process (experiment) by using a real physical existence of locally available materials. Methodology: Squeeze the lemons and strain the lemon juice to remove any pulp into the beaker. Add distilled water to the lemon juice inside the flask up to calibration mark. Hardwood ashes and red cabbage were sorted, cleaned and processed into boiled and cooled liquid extract. The extracts obtained were analyzed for titration process. Results: Quantitative Estimation of weak acid (Lemon) with strong base (Wood ashes) using titration method and red cabbage solution operate as an indicator and the end point determines the color changing from green to colorless.