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From Yahoo Answers. Question: The mole concept is important in chemistry because 1. atoms and molecules are very small and themole concept allows us to count atoms and molecules by weighing macroscopic amounts of material. 2. it establishes a standard for reaction stoi-chiometry. 3. it explains the properties of gases.
What is the importance of molecules? Answer Molecules can be a very important piece of information while dealing with moles or mass. For example, one can very easily convert molecules to moles to fin â¦ d the mass of a substance (this needs the # of molecules of the compound/element and the chemical formula). Also, the number of molecules can find moles and atoms through different equations.