SOLUTION: What quantity of 65 percent acid solution must be mixed with a 25 percent solution to produce 576 mL of a 50 percent solution?

Question 563781: What quantity of 65 percent acid solution must be mixed with a 25 percent solution to produce 576 mL of a 50 percent solution?
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
Let x=amount of 65% solution needed
Now we know that the pure acid that exists before the solutions are mixed together has to equal the amount of pure acid after the solutions are mixed together, soooooo:
0.65x+0.25(576-x)=0.50*576 simplify
0.65x+144-0.25x=288 subtract 144 from each side
0.40x=144
x=360 ml----amount of 65% solution needed
CK
0.65*360+0.25*(576-360)=0.50*575
234+54=288
288=288

Hope this helps---ptaylor
RELATED QUESTIONS
What quantity of 65 percent acid solution must be mixed with a 20 percent solution to... (answered by scott8148)

What quantity of 65 percent acid solution must be mixed with a 20 percent solution to... (answered by robertb)

What quantity of 65 percent acid solution must be mixed with a 30 percent solution to... (answered by richwmiller)

What quantity of 80 percent acid solution must be mixed with a 25 percent solution to... (answered by Alan3354)

What quantity of 60 percent acid solution must be mixed with a 25 per cent solution to... (answered by Alan3354)

What quantity of 70 percent acid solution must be mixed with a 20 percent solution to... (answered by robertb)

What quantity of 75 percent acid solution must be mixed with a 30 percent solution to... (answered by ewatrrr)

(1 pt) What quantity of 65 per cent acid solution must be mixed with a 30 percent... (answered by josmiceli)

What quantity of 60 per cent acid solution must be mixed with a 25 percent solution to... (answered by Alan3354)