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The decomposition of potassium chlorate, kclo3, is used as a source of oxygen in the laboratory. how many moles of potassium chlorate are needed to produce 15 moles of oxygen gas? worksheet

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jcherry99
2KClO3 ===> 2KCl + 3O2

Set up a Proportion
2 mols KClO3 . . . . . . . . . . . x
========= . . . . . . . . . . . ==============
3 moles of Oxygen . . . . . . 15 moles of oxygen

2/3 = x / 15 Cross Multiply.
2 * 15 = 3x
30 = 3x
x = 30 / 3
x = 10

So to get 15 moles of oxygen, you need 10 moles of KClO3

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