30.03.2023 - 23:57

A chemist has two solutions of HNO_3. One has a 40% concentration and the other has a 25% concentration. How many liters of each solution must be mixed to obtain 120 L of a 30% solution?

Question:

A chemist has two solutions of {eq}HNO_3 {/eq}. One has a 40% concentration and the other has a 25% concentration.

How many liters of each solution must be mixed to obtain 120 L of a 30% solution?

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