SOLUTION: What quantity of pure acid must be added to 400 mL of a 40% acid solution to produce a 60% acid solution?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: What quantity of pure acid must be added to 400 mL of a 40% acid solution to produce a 60% acid solution?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 898042: What quantity of pure acid must be added to 400 mL of a 40% acid solution to produce a 60% acid solution?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.4*400+x=.6(400+x)
x=200