SOLUTION: A chemist has 10% and 16% acid solutions. How many liters of each solution are needed to produce 30 liters of a 14% acid solution?
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Question 319038: A chemist has 10% and 16% acid solutions. How many liters of each solution are needed to produce 30 liters of a 14% acid solution?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the volume of 10% solution.
Let B be the volume of 16% solution.
.
.
The chemist has to produce 30 liters.
1.
.
.
The concentration of the 30 liters must be 14%.
2.
From eq. 1,
Substitute into eq. 2 and solve for B,
.
.
Now go back to the previous equation,
.
.
.
Use 10 liters of 10% solution and 20 liters of 16% solution to get 30 liters of 14% solution.
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