SOLUTION: A chemist has two solutions of HNO3. One has a​ 40% concentration and the other has a​ 25% concentration. How many liters of each solution must be mixed to obtain 142 l
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Question 1039669: A chemist has two solutions of HNO3. One has a 40% concentration and the other has a 25% concentration. How many liters of each solution must be mixed to obtain 142 liters of a 27% solution?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let n be your first acid solution. Then:
.4(n)+.25(142-n)=142(.27)
.4n+35.5-.25n=38.34
.15n=2.84
n=2.84/.15=18.93 liters of the 40% solution; and 123.06 liters of the 25% solution!!!!!!!!!!!
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