在实验室里加热30 g氯酸钾(KClO3)和二氧化锰的混合物制取氧气,完全

在实验室里加热30 g氯酸钾(KClO3)和二氧化锰的混合物制取氧气,完全反应后剩余固体质量为20.4 g。请计算:

(1)生成氧气的质量为__g

   (2)原混合物中氯酸钾的质量。

答案

9.6  245 g

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