(a) What is the mass, in grams, of 1.223 mol of iron(III)sulfate?(b) How many moles of ammonium ions are in 6.955 g ofammonium carbonate?(c) What is the mass, in grams, of 1.50 x 1021 molecules ofaspirin, C9H8O4?(d) What is the molar mass of diazepam (Valium®) if 0.05570mol has a mass of 15.86 g?

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Q: (a) How many moles of ammonium ions are in 0.735 g of ammonium carbonate? 0.05130 X mol

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Q: (b) What mass of Na,AlO, can be formed from 165.0 g of NaOH?

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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.