SOLUTION: Theresa Morgan, a chemist, has a 25% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each should she mix to get 10 liters of a hydrochloric aci

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Theresa Morgan, a chemist, has a 25% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each should she mix to get 10 liters of a hydrochloric aci      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 450199: Theresa Morgan, a chemist, has a 25% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each should she mix to get 10 liters of a hydrochloric acid solution with a 40% acid concentration?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Let x=vol. in L.
.25 x = .25x
.50(10-x)=5-.5x
.
.25x+5-.5x=10*.4
-.25x+5=4
-.25x=-1
x=4 L of 25% HCl
10-x=6 L of 50% HCl
.
Ed