How many moles of oxygen will be produced from the decomposition of 3 moles of $KClO_3$ in the reaction $KClO_3 -> KCl + O_2$ ?

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Answer 1 · 2016-03-08T13:37:28

We first have to balance the equation, because it isn't.

$KClO_3>KCl+1 1/2 O_2$ because there are three $O$ 's

Or rather:
$2KClO_3->2KCl+3 O_2$

This doesn't matter for the solution because every mole of $KClO_3$ will produce $1 1/2$ mole of $O_2$

You can do the last bit.

How many moles of oxygen will be produced from the decomposition of 3 moles of KClO_3KClO_3 in the reaction KClO_3 -> KCl + O_2KClO_3 -> KCl + O_2?