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18 January, 20:30

How many hydrogen atoms are in 4.40 mol of ammonium sulfide

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  1. 18 January, 20:47
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    The number of hydrogen atoms that are in 4.40 mol of ammonium sulfide is 2.12 x10^25 atoms

    calculation

    find the number of moles of Hydrogen in ammonium sulfide (NH4) 2S

    that is 4.40 x number of hydrogen atoms in (NH4) 2S (4x2 = 8 atoms)

    moles is therefore = 4.40 x8 = 35.2 moles

    by use of Avogadro's law constant

    that is 1mole = 6.02 x10^23 atoms

    35.2 moles=?

    by cross multiplication

    {35.2 moles x 6.02 x10^23} / 1 mole = 2.12 x10^25 atoms
  2. 18 January, 20:59
    0
    The molecular formula for ammonium sulfide would be (NH4) 2S. That means in one molecule of ammonium sulfide there will be 1 N + 4 H + 2 S molecules.

    Then the amount of hydrogen atoms in 4.4 moles of ammonium sulfide should be: 4.4 moles * 4/1 = 17.6 moles

    If you are asked for atom count then the amount should be: 17.6 moles * 6.022x10^23 atoms/mol = 105.9872 * 10^23 = 1.06 * 10^25
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