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A solution of cough syrup contains 5.00% active ingredient by the volume of the bottle is 18.0 mL, how many mililiters of the active ingredient are in the bottle?
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A solution of cough syrup contains 5.00% active ingredient by the volume of the bottle is 18.0 mL, how many mililiters of the active ingredient are in the bottle?

User Stefano L
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18mL \ \ \ \ \rightarrow \ \ \ 100\%\\ V_(x) \ \ \ \ \ \ \ \ \rightarrow \ \ 5\%\\\\ V_(x)=(18mL*5\%)/(100\%)=0,9mL
User Vitaliy Rayets
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