SOLUTION: You need a 80% alcohol solution. On hand, you have a 260 mL of a 45% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?

Question 1036670: You need a 80% alcohol solution. On hand, you have a 260 mL of a 45% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of pure alcohol needed
ml of pure alcohol in 45% solution
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455 ml of pure alcohol should be added
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check:

OK
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