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5 May, 21:03

At its highest salinity, the water in Utah's Great Salt Lake contains about 14.5g of salt in 50g of lake after. What was the salinity of the lake?

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  1. 5 May, 21:35
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    the salinity of lake is expressed as mass of salt dissolved in grams per kg of water

    Given:

    Mass of salt = 14.5g

    mass of water = 50g = 50 / 1000kg = 0.05kg

    Thus salinity will be

    salinity = mass of solute / mass of water in kg

    salinity = 14.5g / 0.05 kg = 290g / kg

    This can also be expressed as parts per thousand or ppt

    so salinity is 290 ppt
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