SOLUTION: how much water must be added to 60 kg of an 80 percent acid solution to produce a 50 percent solution

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Question 250285: how much water must be added to 60 kg of an 80 percent acid solution to produce a 50 percent solution
Answer by Greenfinch(383) About Me  (Show Source):
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60 kg of 80% solution contains 48 kg of acid and therefore 12 kg of water
a 50% solution will need 48 kg of water, so you need to add 36 kg of water