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23 July, 02:26

How many moles of potassium are represented by 7.85 _ 1024 potassium atoms?

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  1. 23 July, 02:37
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    Use Avogadro number

    1 mol = 6.02 * 10 ^ 23 atoms

    7.85 * 10 ^ 24 atoms / 6.02 * 10 ^23 atoms / mol ≈ 13 moles
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