Oxygen is evolved by heating KClO3 using MnO2 as catalyst; 2KClO3 2KCl + 3O2 (i) Calculate the mass of KClO3 required to produce 6.72 litres of O2 at S.T.P. [Atomic mass of K=39; Cl=35.5; O=16] (ii) Calculate the number of moles of oxygen present in the above volume and also the number of molecules.
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18.10 square is the answer
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