SOLUTION: how many liters of water must be added to 8 liters of a 40 percent acid solution to obtain a 10 percent acid solution?

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Question 38831: how many liters of water must be added to 8 liters of a 40 percent acid solution to obtain a 10 percent acid solution?
Answer by checkley71(8403) About Me  (Show Source):
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.4*8+X=.1(8+X) OR .32+X=.8+.8X OR .2X=.8-.32 OR .2X=.48 OR X=24 LITERS OF WATER MUST BE ADDED TO OBTAIN A 10% ACID SOLUTION.