18-06-2016
Chemistry

contestada

If 17.8 grams of KOH dissolve in enough water to make a 198-gram solution, what is the concentration in percent by mass?

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Willchemistry Willchemistry

22-06-2016

Solute of solution = 17.8 g

Solvn = 198 g

% = 17.8 / 198

w% = 0.089 x 100 = 8.9% by mass

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