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OpenStudy (anonymous):
A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution. How much of the 70% solution is used
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terenzreignz (terenzreignz):
Let's just make a crude illustration first. In the boxes, we put the concentration, while below each box, we'll put the amount...
terenzreignz (terenzreignz):
|dw:1370877269093:dw|
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