Angelo knows the amount of a compound in moles. To find the number of molecules in the sample of compound, which of the following values must be used in the calculation? molar mass of the compound atomic mass of each element in the compound mass of the sample in grams Avogadro's number Calculate the number of formula units present in a sample that contains 3.2 moles of potassium chloride. number of units: MacBook Pro + formula units

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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.