Answer to Question #52700 in Inorganic Chemistry for kayla

Question #52700
How many molecules of oxygen gas, O2, are produced in 2KCIO3 → 2KCI + 3O2
Expert's answer
Potassium chlorate decompose to form potassium chloride and oxygen, according to the following reaction:
2KClO3 = 2KCl + 3O2


It is shown that from 2 mol of potassium chlorate we can obtain 3 mol of oxygen, so from 1 mol of potassium chlorate we will obtain 1.5 mol of oxigen. It is well known fact, that in 1 mole of pure substance there are 6.023·1023 molecules, so 1.5 mol of oxigen contain 9.035·1023 molecules of oxygen.

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