SOLUTION: A chemist wants to make 75 liters of 16% acid solution. He is going to make it by mixing a 10% acid and a 25% acid solution. How many liters of each will he need?

Question 272008: A chemist wants to make 75 liters of 16% acid solution. He is going to make it by mixing a 10% acid and a 25% acid solution. How many liters of each will he need?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A chemist wants to make 75 liters of 16% acid solution.
He is going to make it by mixing a 10% acid and a 25% acid solution.
How many liters of each will he need?
:
Let x = amt of 25% solution
The total is to be 75 liters, therefore
(75-x) = amt of 10% solution required
:
.25x + .10(75-x) = .16(75)
:
.25x + 7.5 - .1x = 12
:
.25x - .10x = 12 - 7.5
:
.15x = 4.5
x =
x = 30 liters of 25% solution
and
75 - 30 = 45 liters of 10% solutions
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