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8 September, 15:12

How many atoms of hydrogen are in 24.4 g of methane?

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  1. 8 September, 17:30
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    The number of atom is 3.67*10^24 atoms

    Explanation:

    Molar mass of methane CH4 is 16.0g/mol

    Using this to divide the mass

    24.4g/16.0 = 1.525mol

    1 mol CH4 contains 1 mol of Carbon C and 4 mol of hydrogen H, so 1.525mol contains 4 (1.525) = 6.1 molH

    Using avogadro number : (6.1mol) (6.02*10^23)

    = 3.67*10^24 atoms
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