SOLUTION: 9 ml of a 20% alcohol was mixed with 6 ml of pure water. Find the concentration of the new mixture.

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Question 1015700: 9 ml of a 20% alcohol was mixed with 6 ml of pure water. Find the concentration of the new mixture.
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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0.20(9ml)=1.8ml . You have 1.8 ml of alcohol
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9ml+6ml=15ml . You have 15 ml total solution
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(1.8ml/15ml)(100%)=12% The final solution is 12%.
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