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22 March, 10:49

Pure acid is to be added to a 10% acid solution to obtain 72 L of a 20% acid solution.

What amounts of each should be used?

_L of pure acid solution and _L of 10% acid solution

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Answers (1)
  1. 22 March, 11:50
    0
    36

    Step-by-step explanation:

    because 10 is 1/2 of 20 and 72/2 = 36
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