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Calculate the volume of O(2) at STP libe...

Calculate the volume of `O_(2)` at STP liberated by heating 12.25 g of `KCIO_(3)`. (At. Wt. of K=39, Cl=35.5, O=16 u)

Text Solution

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`2KClO_(3) overset("heat") to 2KCl + 3O_(2)`
`2 xx 122.5` of `KlCO_(3)` gives `=(3 xx 22.4)/(2 xx 122.5) xx 12.25 = 3.36` L of `O_(2)` of STP.
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