Molecular Weight

Molecular weight is a measure of the mass of a molecule, calculated by adding up the weights of all the atoms in that molecule. Each type of atom (like hydrogen, carbon, or oxygen) has a specific weight, and the molecular weight reflects the total weight of the molecule made up of these atoms. It is usually expressed in atomic mass units (amu) or grams per mole (g/mol). Molecular weight is important in chemistry because it helps determine how substances react with each other and how they behave in different conditions, such as in solutions or during reactions.