Ammonium sulfate, (NH4)2SO4, is used in fertilizers to provide nitrogen for the soil.  a. How many formula units are in 0.200 mole of ammonium sulfate? b. How many H atoms are in 0.100 mole of ammonium sulfate? c. How many moles of ammonium sulfate contain 7.4 x 1025 atoms of N? d. What is the molar mass of ammonium sulfate?

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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.