SOLUTION: You need a 95% alcohol solution. On hand, you have a 60 mL of a 15% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution? You will need

SOLUTION: You need a 95% alcohol solution. On hand, you have a 60 mL of a 15% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution? You will need

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Question 521493: You need a 95% alcohol solution. On hand, you have a 60 mL of a 15% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
You will need
mL of pure alcohol
to obtain
mL of the desired 95% solution.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
from the view of alcohol
.15*60+a=.95(a+60)
a=960 ml of pure alcohol
from the view of nonalcohol
.85*60=.05*(60+a)
a=960 ml of pure alcohol
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