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3 years ago

12

Potassium chlorate (KClO3) decomposes to form potassium chloride (KCl) and pure oxygen (O2) gas as shown below.

1 answer:

LuckyWell [14K]3 years ago

7 0

The balanced chemical reaction is:

2KClO3 ----> 2KCl + 3O2

We are given the amount of oxygen gas to be produced from potassium chlorate. This will be the starting point for the calculations.

28.0 L O2 ( 1 mol / 22.4 L) (2 mol KClO3 / 3 mol O2) ( 122.55 g / 1 mol) = 102.13 g KClO3 is needed

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