A Study on the Use of the Law of Conservation of Mass in Chemistry
Mai Vu Quynh *
Faculty of Basic Sciences, Hanoi Industrial and Trade University, Vietnam.
*Author to whom correspondence should be addressed.
Abstract
The application of problem-solving methods plays a crucial role in developing learners’ analytical and critical thinking skills. In chemistry education, the law of conservation of mass is particularly emphasized due to its effectiveness and wide applicability across various types of exercises. This method enables the rapid solution of problems involving the masses of substances before and after a reaction, particularly in cases where reactions are not completely specified or involve multiple reactants. This article presents approaches to applying the law of conservation of mass to solve selected problems ranging from basic to advanced levels, while also analyzing its practical applications in the teaching of chemistry. It enables learners to apply theoretical knowledge to practical problem solving, especially in reactions involving multiple substances or incomplete reaction conditions.
Keywords: Chemistry, methods, mass conservation, exercises