One mole of an atom of a substance is equal to the: a Gram atomic mass of the element b Gram molecular mass of the element c Atomic number of the element d None of the above

One mole of an atom of a substance is equal to the gram atomic mass of the element, which is usually expressed in grams per mole. This fascinating relationship connects the amount of substance to its mass, allowing chemists to measure reactions and amounts in the lab with ease! When discussing moles, it’s essential to avoid common pitfalls! A frequent mistake is confusing atomic mass with molecular mass. Remember, the gram atomic mass applies to individual atoms, while the gram molecular mass pertains to molecules composed of two or more atoms. Keep this in mind for accurate calculations!