Mass formulas are mathematical equations used to calculate the mass of an object based on its volume and density. The most common formula is mass = density × volume. This relationship helps scientists and engineers determine how much matter is present in a given space, which is essential in various fields, including chemistry and physics. In addition to basic calculations, mass formulas can also be applied in more complex scenarios, such as in the study of molecular mass in chemistry. Here, the mass of a molecule is calculated by adding the atomic masses of its constituent atoms, providing insights into chemical reactions and compound formation.