molekyylimassoissa
Molekyylimassoissa refers to the masses of molecules. In chemistry, the mass of a molecule is determined by summing the atomic masses of all the atoms within that molecule. Atomic masses are typically expressed in atomic mass units (amu), which is a standardized unit. The periodic table provides the average atomic mass for each element. For example, the molecular mass of water (H2O) is calculated by taking the atomic mass of hydrogen (approximately 1.008 amu) and multiplying it by two, then adding the atomic mass of oxygen (approximately 15.999 amu). This results in a molecular mass of about 18.015 amu for water.
Molecular mass is a fundamental property used in various chemical calculations, including stoichiometry, which deals with