Potassium chlorate decomposes, on heating, to form potassium chloride and oxygen. When 24.5 g of potassium chlorate is decomposed completely, then 14.9 g of potassium chloride is formed. Calculate the mass of oxygen formed. Which law of chemical combination have you used in solving this problem?
Answers
The mass of oxygen formed is 9.6 grams. In solving this problem, the law of conservation of mass is used.
Explanation:
As per the information provided in the question,
Potassium chlorate Potassium chloride + Oxygen
24.5 grams 14.9 grams + x grams
So, as per the law of conservation of mass,
Mass of potassium chlorate = Mass of potassium oxygen + mass of potassium chloride
24.5 grams = x grams + 14.9 grams
X = 24.5g-14.9g
X = 9.6g
So, the mass of oxygen is 9.6 grams.
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Answer:
Law of conservation of mass can be used to solve this problem.
Explanation:
Mass of reactants = Mass of products
Mass of potassium chloride + Mass of oxygen = Mass of potassium chlorate
14.9g + Mass of oxygen = 24.5g
Mass of oxygen = 24.5g - 14.9
Therefore, mass of oxygen = 9.6g