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21 January, 09:48

What mass of hydrogen will be produced by the reaction of 67.3 g of tin with excess water according to the following reaction?

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  1. 21 January, 10:50
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    Mass of hydrogen produced = 2.28 g

    Explanation:

    Given dа ta:

    Mass of tin = 67.3 g

    Mass of hydrogen produced = ?

    Solution:

    Chemical equation:

    Sn + 2H₂O → SnO₂ + 2H₂

    Number of moles of Sn:

    Number of moles = mass / molar mass

    Number of moles = 67.3 g / 118.71 g/mol

    Number of moles = 0.57 mol

    Now we will compare the moles of tin with hydrogen from balance chemical equation.

    Sn : H₂

    1 : 2

    0.57 : 2*0.57 = 1.14

    Mass of hydrogen:

    Mass = number of moles * molar mass

    Mass = 1.14 mol * 2 g/mol

    Mass = 2.28 g
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