Hello! How are you all? Today we will discuss molecular mass and formula mass. Molecular Mass: The sum of atomic masses of all the atoms present in one molecule of a molecular substance, is it's molecular mass. For example: molecular mass of water is 18 amu, chlorine is 71 amu and carbon dioxide is 44 amu. Formula Mass: The sum of atomic masses of all the atoms present in one formula unit of a substance. For example: formula mass of sodium chloride is 58.5 amu and that of CaCO3 is 100 amu. So this was the short introduction of basic terms. See you soon. Stay tuned.
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