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4 August, 06:49

Calculate the mass of ZnCl2 produced by the reaction of 49.8 grams of H2. Zn + 2HCl ZnCl2 + H2

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  1. 4 August, 09:33
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    3300.85 g

    Explanation:

    Given dа ta:

    Mass of ZnCl₂ produced = ?

    Mass of H₂ produced = 49.8 g

    Solution:

    Chemical equation:

    Zn + 2HCl → ZnCl₂ + H₂

    Number of moles of H₂:

    Number of moles = mass/molar mass

    Number of moles = 49.8 g / 2.056 g/mol

    Number of moles = 24.22 mol

    Now we will compare the moles of H₂ with ZnCl₂ form balance chemical equation.

    H₂ : ZnCl₂

    1 : 1

    24.22 : 24.22

    Mass of ZnCl₂:

    Mass = number of moles * molar mass

    Mass = 24.22 * 136.286 g/mol

    Mass = 3300.85 g
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