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Upon heating, potassium chlorate decomposes to potassium chloride and oxygen gas. The oxygen gas is collected...

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Chemistry

Upon heating, potassium chlorate decomposes to potassiumchloride and oxygen gas. The oxygen gas is collected over water at14.0 °C in a 500.-mL container. If the total pressure is 766torr,

How many mol of oxygen gas is in the container?
What is the mole fraction of oxygen gas in the container?.
(Mole fraction = mole of substance of interest / mole of thesystem)

How many grams of potassium chlorate is decomposed?

Answer & Explanation Solved by verified expert
3.6 Ratings (356 Votes)
Answer We are given potassium chlorate decomposes to potassium chloride and oxygen gas So reaction 2KClO3 2KCl 3O2 For O2 gas temperature T 14273 287 K volume 500 mL 0500 L Total pressure 766 torr So we need to calculate first pressure of O2 We know    See Answer
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