nickleoncio0705 nickleoncio0705
  • 16-01-2018
  • Mathematics
contestada

How much water should be added to 10 mL of 8​% alcohol solution to reduce the concentration to 5​%?

We should add ___ mL.

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748190877
748190877 748190877
  • 16-01-2018
my answer is 6ml, we can assume that we added in Xml water, and the alcohol is unchanged, so we can get the equation: 0.8/(10+X)=5%, than we can get the X=6ml.
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