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18 January, 22:57

How many grams of solute are contained in 356 g of a 12.5% (w/w) solution?

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  1. 19 January, 00:39
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    44.5 g of solute are contained in 356g of a 12.5% (w/w) solution.

    Explanation:

    12.5% (w/w) is the mass/mass percentage concentration of the solution.

    % (w/w) = (mass of solute/mass of solution) * 100

    Subsititue with:

    % (w/w) = 12.5 mass of solution 356g

    And solve for the mass of solute:

    12.5 = (mass of solute / 356g) * 100

    mass of solute = 12.5 * 356g / 100 = 44.5 g ← answer
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