The Simple Classroom Method to Demonstrate the Law of Conservation of Mass

Abstract

Laboratory methods that are given to verify the law of conservation of mass require an accurate balance and weighed amount of material for performing the activity. Generally, a precipitation reaction is preferred in these activities to show that a chemical reaction has occurred, and verification requires careful mass measurement before and after the reaction. This paper deals with a straightforward and fast method with very low/no-cost involvement and uses environment-friendly materials.