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23 January, 22:42

The proportion of dissolved substances in seawater is usually expressed in

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  1. 24 January, 00:44
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    The proportion of dissolved substances in seawater is usually expressed in ppm, ppb or ppt

    Explanation:

    The concentration of very diluted solutions should be expressed in parts per million, billion or trillion.

    ppm = mass from the solute. 10⁶ / mass or volume of the solution

    ppb = mass from the solute. 10⁹ / mass or volume of the solution

    ppt = mass from the solute. 10¹² / mass or volume of the solution

    ppm = mg/kg, μg/g, μg/mL → These are the units

    ppb = ng/g

    ppt = pg/g
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