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2 January, 15:51

How many moles is 1.25 x 1024 atoms of bromine?

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  1. 2 January, 16:32
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    2.08 moles (3 s. f.)

    Explanation:

    number of moles

    = number of atoms : Avogadro's constant

    Avogadro's constant = 6.022 * 10²³

    Thus, number of moles

    = 1.25*10²⁴ : (6.022 * 10²³)

    = 2.08 moles (3 s. f.)
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