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?

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(19441) (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
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