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31 July, 08:56

How many iron atoms are contained in 354 g of iron?

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Answers (2)
  1. 31 July, 09:00
    0
    3.82 x 10^24 Fe atoms
  2. 31 July, 09:19
    0
    Molar mass Fe = 55.85g/mol

    Mol Fe in 354g = 354/55.85 = 6.338 mol Fe

    1 mol Fe = 6.022*10^23 atoms

    6.338 mol Fe = 6.338*6.022*10^23

    = 3.82 * 10^24 atoms.
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