Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitroge 4KNO3(s) →→2K₂O(s) + 2N₂(g) +50₂(g) To produce 30.8 kg of O₂, how many (a) moles of KNO3 must be heated? mol (b) grams of KNO3 must be heated? g

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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.