SOLUTION: What quantity of 75 percent acid solution must be mixed with a 30 percent solution to produce 135 mL of a 50 percent solution?

Question 650807: What quantity of 75 percent acid solution must be mixed with a 30 percent solution to produce 135 mL of a 50 percent solution?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

What quantity of 75 percent acid solution must be mixed with a 30 percent solution 

to produce 135 mL of a 50 percent solution? 

   acid  = acid

 

                 .45x = .20�135

                    x = .20�135/.45

 

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