A chemist has two solutions of H2SO4. One has a 40% concentration and the other has a 25% concentration.
How many liters of each solution must be mixed to obtain 78 liters of a 28% solution?
liters of the 40% solution and
liters of the 25% solution must be mixed to obtain a 28% solution of H2SO4.
(Round to the nearest tenth, if necessary.)
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