tinh khoi luong cua kclo3 can dung de dieu che dc 3,36 lit khi oxi o dktc

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tinh khoi luong cua kclo3 can dung de dieu che dc 3,36 lit khi oxi o dktc

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Ruby 4 tuần 2021-11-14T01:59:40+00:00 1 Answers 2 views 0

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  1. haianh
    0
    2021-11-14T02:00:47+00:00
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    Đáp án:

     12,25g

    Giải thích các bước giải:

    \(\begin{array}{l}
    2KCl{O_3} \xrightarrow{t^0} 2KCl + 3{O_2}\\
    n{O_2} = \dfrac{V}{{22,4}} = \dfrac{{3,36}}{{22,4}} = 0,15\,mol\\
    nKCl{O_3} = \dfrac{{0,15 \times 2}}{3} = 0,1\,mol\\
    mKCl{O_3} = n \times M = 0,1 \times 122,5 = 12,25g
    \end{array}\)

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