Mathematics, 10.02.2021 06:30, dapabaro

Pure acid is to be added to a 10% acid solution to obtain 90L of 19% solution. What amounts of each should be used? How many liters of 100% pure acid should be used to make the solution?

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Pure acid is to be added to a 10% acid solution to obtain 90L of 19% solution. What amounts of each...