SOLUTION: how much pure acid should be mixed with 4 gallons of 50% acid solution in order to get 60% acid solution?

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Question 495789: how much pure acid should be mixed with 4 gallons of 50% acid solution in order to get 60% acid solution?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = gallons of pure acid to be added
given:
gallons of acid in 50% solution
-----------





1 gallon of pure acid needs to be added
check:




OK

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