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Lab 7 Preparation of Oxygen Properties of Oxygen and Behavior of Oxides Oxygen makes up nearly half of the Earth s crust mass and 86 of the mass of the Ocean That alone makes it a very

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Oxygen gas can be prepared in the laboratory by heating potassium chlorate KClO3 in the presence of a catalyst like manganese dioxide MnO2 The chemical reaction involved is the

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In Part A of this lab you will analyze a sample of potassium chlorate to determine the mass percent of oxygen present in it To perform the analysis you will decompose the potassium chlorate by heating it

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Chemicals Manganese IV Oxide Potassium Chl Method A known amount of potassium chlorate and a small amount of manganese IV oxide is put in a hard boiling tube The apparatus is

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In the decomposition of potassium chlorate the chlorine in KClO3 gains electrons to form KCl thus KClO3 is the oxidizing agent There is no reducing agent in this reaction because oxygen is

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Explore potassium chlorate decomposition in this lab manual Verify stoichiometry identify oxygen gas and analyze errors Ideal for chemistry students

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The diagram would typically show the test tube with potassium chlorate the heat source and the collection apparatus for the gas Note As a text based AI I cannot draw diagrams but you can

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In a lab setting generating oxygen allows students and researchers to study gas properties test reactivity or prepare samples for experiments Common methods include chemical decomposition

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This video shows the step by step preparation of oxygen using potassium chlorate KClO3 is the known molecular formula of potassium chlorate