If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? A. 21.2% KCl B. 5.71% KCl C. 14.9% KCl D. 17.5% KCl

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Peppa Pig

Chemistry

4 December, 07:15

If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? A. 21.2% KCl B. 5.71% KCl C. 14.9% KCl D. 17.5% KCl

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Lesly Rivera · Answer 1

Answer is: concentration of the solution in percent is C. 14.9%.

m (KCl) = 33,6 g.

m (H ₂O) = 192 g.

m (solution) = m (KCl) + m (H₂O).

m (solution) = 33,6 g + 192 g.

m (solution) = 225,6 g.

concentration of the solution in percent = m (KCl) : m (solution) · 100%.

concentration of the solution in percent = 33,6 g : 225,6 g · 100%.

concentration of the solution in percent = 14,9%.