SOLUTION: How many liters of pure acid must be added to a 6L of a 15% acid solution to obtain a 40% acid solution?
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Question 391255
:
How many liters of pure acid must be added to a 6L of a 15% acid solution to obtain a 40% acid solution?
Answer by
josmiceli(19441)
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Let
= liters of acid to add
given:
liters of acid in 15% solution
----------------
In words:
(liters of acid)/(liters of solution) = 40%
2.5 liters of pure acid must be added
check answer:
OK
