SOLUTION: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution. What amounts of each should be used? ____ L of pure acid solution and ___

SOLUTION: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution. What amounts of each should be used? L of pure acid solution and L of 10% acid s

Question 1013889: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution.
What amounts of each should be used?
____ L of pure acid solution and ____ L of 10% acid solution.

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution.
What amounts of each should be used?
------------------
t = 10%
h = 100%
-----
t + h = 90 (total solution)
10t + 100h = 90*20 (total acid)
Solve for t & h

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SOLUTION: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution. What amounts of each should be used? ____ L of pure acid solution and ____ L of 10% acid s

SOLUTION: Pure acid is to be added to a 10% acid solution to obtain 90 L of a 20% acid solution. What amounts of each should be used? L of pure acid solution and L of 10% acid s