A mixture of KCl and KClO3 weighing 1.40 g was heated; the dry O2 generated occupied...

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A mixture of KCl and KClO3 weighing 1.40 g was heated; the dry O2 generated occupied...

A mixture of KCl and KClO₃ weighing 1.40 g was heated; the dry O₂ generated occupied 143 mL at STP. What percent by mass of the original mixture was KClO₃, which decomposes as follows: 2KClO₃(s) = 2KCl (s) + 3O₂(g)

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Answer 1

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Q. = 143 mL 02 6.384 mmel Mole 22. 4 LImot 2 к слоз 302 2 КСА 02 2 mod o KcL03 produces 3 mot mele o кслоз Mole X 6.384 m mol

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