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1.0g sample of KCl3 was heated under suc...

1.0g sample of `KCl_3` was heated under such condition that a part of it decomposed according to the equation.
`2KClO_3to2KCl+3O_2` and the remaining underwent change according to the equation.
`4KClO_3to3KClO_4+KCl`.
If the amount of `O_2` evolved was `145.8` mL at STP. Calculate the percentage by weight of `KClO_4` in the residue.

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1 g sample of KClO_(3) was heated under such conditions that a part of it decomposed according to the equation : 2KClO_(3) rarr 2KCl + 3O_(2) and the remaining underwent change according to the equation : 4KClO_(3)rarr 3KClO_(4)+KCl If the amount of O_(2) evolved was 146.8 ml at S.T.P., calculate the % by weight of KClO_(4) in the reside.

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KClO_(3) decomposes to KCl and O_(2) . If the volume of O_(2) obtained in this reaction is 1.12 lit at STP, weight of KCl formed in the reaction is