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Beginning of Paper
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Decomposition
Purpose: In this lab we will observe the products of decomposition of potassium
perchlorate (KClO4). We will then predict from our results the correct chemical
reaction equation.
Procedure: 1. Weigh out about 4.0g of KClO4 in a test tube. Record the
accurate weight below. Product Weight Before Weight After Mass of Test tube +
KClO4 41.5g 39.8g Mass of Test tube 37.5g 37.5 Mass of KClO4
4.0g 2.3g ....
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Middle of Paper
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.... ¸ KClO4 = .06 moles ´ 32g = 1.9g 5 Percent
Yield: 89% O2 lost 1.7g ¸ O2 Expected 1.9g
....
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ADDITIONAL FEATURED ESSAYS
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