Molar mass is a fundamental property of a substance and is used in various stoichiometric calculations. It allows us to convert the amount of a substance from moles to mass and vice versa. The molar mass of a substance can be determined experimentally or calculated using the atomic masses of the elements present in the substance.
For example, the molar mass of carbon dioxide (CO2) is 44.01 g/mol. This means that one mole of carbon dioxide molecules has a mass of 44.01 grams. Similarly, the molar mass of water (H2O) is 18.02 g/mol, indicating that one mole of water molecules weighs 18.02 grams.
