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5 December, 01:11

How many atoms are in a sample of 175 grams of sodium (na) ?

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  1. 5 December, 04:25
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    1 Na = 23 g/mol

    1 mole of Na atom contain an Avogadro Number of atoms.

    23g of Na Na atom contain 6.02 * 10²³ atoms.

    175 g of Na will contain: 175 * 6.02 * 10²³ / 23

    ≈ 4.580 * 10²⁴ atoms of Na.
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