What mass or iron is needed to react with 30.0g of oxygen? Could you show me how you got that answer?

Question

What mass or iron is needed to react with 30.0g of oxygen? Could you show me how you got that answer?

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Hải Đăng 3 weeks 2021-08-26T05:16:44+00:00 1 Answers 0 views 0

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    2021-08-26T05:17:53+00:00

    Answer:

    The mass of iron needed to react with the oxygen is 70 g.

    Explanation:

    The balanced chemical reaction between iron and oxygen is given as;

    4Fe    +  3O₂    ———->    2Fe₂O₃

    Molecular mass of 3O₂:  3(16 x 2) = 96 g

    Molecular mass of 4Fe: 4(56) = 224 g

    96 g   of  O₂  —requires——–> 224 g of Fe

    30 g of O₂ ——-requires———>?  Fe

    =   (30 x 224) / 96

    = 70 g

    Therefore, the mass of iron needed to react with the oxygen is 70 g.

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