SOLUTION: 9ml of a 50% alcohol solution was mixed with 6 ml of a 80% alcohol solution. what is the concentration of the mixture?

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Question 662713: 9ml of a 50% alcohol solution was mixed with 6 ml of a 80% alcohol solution. what is the concentration of the mixture?
Answer by Alan3354(69443) About Me  (Show Source):
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9ml of a 50% alcohol solution was mixed with 6 ml of a 80% alcohol solution. what is the concentration of the mixture?
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9*50 + 6*80 = 15*C