c) Potassium chlorate decomposes to give potassium chloride and oxygen gas. 2KCIO3(s) - 2KCle + 30219) Determine the mass of KCIO, that must be decomposed to produce 80 L of oxygen gas at 120°C and 666.8 torr. (4 marks)

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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.