SOLUTION: How many ounces of water a chemist must mixed with 10 ounces of sulfuric acid solution 20% to make it a 68% solution?

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Question 326503: How many ounces of water a chemist must mixed with 10 ounces of sulfuric acid solution 20% to make it a 68% solution?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
DUPLICATE See Answer 233746
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You can solve adding water to a 68% solution to make a 20% solution but not the other way around.
Let's add X ounces of water (0% solution).
0%28X%29%2B10%2868%29=%28X%2B10%29%2820%29
680=20X%2B200
20X=480
X=24
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Add 24 ounces of water to make a 68% solution into a 20% solution.