How many moles of oxygen are produced by the decomposition of six moles of potassium chlorate

The balanced hemical equation is given below. 18 moles of oxygen are produced.

When 2 moles of Potassium chlorate decomposes to produce 2 moles of potassium chloride and 3 moles of oxygen gas. The balanced chemical equation for this decomposition reaction follows:

By Stoichiometry of the reaction,

2 moles of potassium chlorate produces 3 moles of oxygen gas

So, 12 moles of potassium chlorate will produce =  of oxygen gas.

Hence, 18 moles of oxygen gas will be produced.

planation:

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it is the most commonly accepted one