Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3 N2 . Magnesium nitride reacts with water to give ammonia. Mg,N2 (s) + 6H20(1) → 3Mg(OH)2 (s) + 2NH3 (9) What volume of ammonia gas at 27°C and 762 mmHg will be produced from 5.52 g of magnesium nitride? Volume =

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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.