Question 754316: How much 40% acid solution should be mixed with 2 gallons of 60% acid solution in order to het a 50% acid solution? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = gallons of 40% solution needed = gallons of acid in 40% solution gallons of acid in 60% solution
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2 gallons of 40% solution are needed
check:
OK