a mixture containing `KClO_(3), KHCO_(3), K_(2) CO_(3) and ` KCl was heated, producing `CO_(2) O_(2) and H_(2) O` gases according to the following equations :
`{:(" "2KCl _(3)(s) to 2KCl(s) + 3O_(2)),(2KHCO_(3)(s) to K_(2)O(s) +H_(2)O(g)+2CO_(2)(g)),(" "K_(2)CO_(3)(s) to K_(2)O(s)+CO_(2)(g)):}`
The KCl does not react under the conditions of the reaction. If 100.0 g of the mixture produces 1 . 80 g of `H_(2) O` 13.20 g of `CO_(2)` and 4 . 0 g of `O_(2)` . What was the composition of the original mixture ?

Answer

`(KClO_(3): 12.2 g, KHCO_(3): 20 g, K_(2) CO_(3): 13.8g) `