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24 May, 07:53

Calculate the external pressure that must be applied to seawater, 1.12 M total ion concentration at 10 degrees celsius if the maximum concentration allowed in the product water is 171 mg/L. Assume that all the dissolved salts in the product water is sodium chloride.

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  1. 24 May, 10:26
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    The formula to use for this problem is

    P = iCRT

    where P is the external pressure

    i is the van't Hoff factor

    C is the concentration in mole/L

    R is the gas constant

    T is the temperature

    Substituting with i = 2 for sodium chloride

    P = 2 (171 / (1000*58) (8.314) (10 + 273)

    Solve for P to get the pressure in Pascals
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