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21 November, 07:42

What will be the number of atoms in 0.750 gram of Fe

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  1. 21 November, 07:46
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    8.085x10²¹ atoms

    Explanation:

    Atomic mass of Fe = 55.845 g/mol

    it means,

    1 mole Fe = 55.845 g

    1 mole = 6.02x10²³ atoms

    so,

    55.845g Fe has = 6.02x10²³ atoms

    ∴0.750 g Fe has = { (6.02x10²³ x 0.750) / 55.84} atoms

    =8.085x10²¹ atoms
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