Convert mass to moles then moles to number of molecules. Use the formula masses you calculated in the previous section. Use Avogadro's number. Element K₂S CH3CO₂H NaHSO4 Formula mass (g/mol) Mass (g) 30 130 500 Moles Number of molecules

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.