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6 September, 01:58

What is the mass of 4.23*10^23 atoms of iron

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  1. 6 September, 02:23
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    First divide atoms by Avogadro's number:

    (4.32x10^23) / (6.02x10^23) =.703mol Fe

    Then multiply moles by its molar mass:

    (0.703mol Fe) (55.85g/mol Fe) = 39.24g Fe
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