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25 January, 13:42

If you have 6.02 x 10^23 atoms of metallic iron, you will have how many grams of iron

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  1. 25 January, 13:54
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    Avagadros number states that 1 mol of any substance consists of 6.022 x 10^23 units.

    These units could be molecules making up a compound or atoms making up an element.

    Therefore 1 mol of Fe consists of 6.022 x 10^23 molecules of Fe

    The weight of 1 mol is molar mass. Molar mass of Fe is 55.8 g/mol

    6.022 x 10^23 molecules of Fe weighs 55.8 g/mol

    Therefore 6.02 x 10^23 molecules weigh - 55.8 / (6.022x10^23) x 6.02 x 10^23 molecules

    Mass of Fe - 55.8 g
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