SOLUTION: A chemist has a 500ml solution that is 50 percent water. He wants the solution to become 90 percent water. How many ml of water should he add to the solution?
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Question 308871: A chemist has a 500ml solution that is 50 percent water. He wants the solution to become 90 percent water. How many ml of water should he add to the solution? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! view point of water
500*.5+x=.9(x+500)
x=2000
viewpoint of non water
.5*500=.1(x+500)
250=.1x+50
200=.1x
2000=x
