zachtanner20 zachtanner20
  • 12-01-2018
  • Mathematics
contestada

How much water should be added to 10ml of 7% alcohol solution to reduce the concentration to 5%

Respuesta :

748190877
748190877 748190877
  • 16-01-2018
we can assume that we added in Xml water, because the 7%alcohol is unchanged, so we can get the equation of: 0.7/(10+X)=5%, than we can know the X=4ml
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