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1 September, 17:24

How many atoms of gallium are in 2.85x103 g of gallium?

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  1. 1 September, 17:58
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    Gallium has a molar mass of 69.723, 1 mole contains 6.023 x 10^23 atoms

    So 69.723g : 6.023 x 10^23

    2.85 x 10^3 g : X

    X = 2.461 x 10^25 atoms
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