# SOLUTION: A chemist has 500 mL of a solution that is 60% acid. how much of a 30% solution must be added to make a solution that is 50% acid?

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 Question 196704: A chemist has 500 mL of a solution that is 60% acid. how much of a 30% solution must be added to make a solution that is 50% acid?Answer by josmiceli(9668)   (Show Source): You can put this solution on YOUR website!given: ml of acid Let = ml of solution to be added = ml of acid added Multiply both sides by ml 250 ml of a 30% solution must be added check: OK