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16 September, 14:21

If 25.8 grams of BaO dissolve in enough water to make a 212 gram solution, what is the percent by mass of the solution?

•10.8%

•8.92%

•8.22%

•12.2%

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  1. 16 September, 17:19
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    Mass of solute = 25.8 g

    mass solution = 212 g

    % = (mass of solute / mass solution) x 100

    % = (25.8 / 212) x 100

    % = 0.122 x 100

    = 12.2 %
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