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Potassium Chlorate, KClO3, decomposes when heated to produce potassium chloride and oxygen gas. If 2.50 grams of KCLO3 were heated in a test tube, how many grams of oxygen gas should be given off?
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Potassium Chlorate, KClO3, decomposes when heated to produce potassium chloride and oxygen gas. If 2.50 grams of KCLO3 were heated in a test tube, how many grams of oxygen gas should be given off?

User SupremeDud
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When potassium chlorate, KClO3, decomposes, the products are oxygen gas and potassium chloride. The balaned equation is 2KClO3 = 2KCl + 3O2. Hence using stoichiometry, given 2.5 g of KClO3, the amount of oxygen gas produced is 1.05 grams of O2.
User JonathanZ
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