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8 November, 17:42

Calculate the number of moles in 128 g of sulphur dioxide.

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  1. 8 November, 20:42
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    Number of moles = 2 mol

    Explanation:

    Given dа ta:

    Mass of sulphur dioxide = 128 g

    Number of moles = ?

    Solution:

    Formula:

    Number of moles = mass / molar mass

    Molar mass of sulphur dioxide:

    Formula = SO₂

    Atomic weight of sulfur = 32.065 amu

    Atomic mass of oxygen = 16 amu

    SO₂ = 32.065 + 16*2 = 64.065 g/mol

    Number of moles = 128 g / 64.065 g/mol

    Number of moles = 2 mol
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