SOLUTION: What quantity of pure acid must be added to 600 mL of a 45% acid solution to produce a 75% acid solution?

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Question 843863: What quantity of pure acid must be added to 600 mL of a 45% acid solution to produce a 75% acid solution?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Study this lesson and you will know what to do:

http://www.algebra.com/tutors/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev