Question 399310: a chemist must mix 8 L of a 40% acid solution with some 70% solution to get a 50% solution. how much of the 70% solution should be used? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! (liters of acid in final solution)/(liters of final solution) = 50%
Acid in 40% solution =
Let = liters of 70% solution to use = liters of acid in 70% solution
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4 liters of 70% solution are needed
check answer:
OK
