SOLUTION: How many liters of a 50% acid solution must be mixed with 25% acid solution to get 250 L of a 40% acid solution?
And can you guide me step by step. I was a bit confused on how t
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And can you guide me step by step. I was a bit confused on how t
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Question 409134: How many liters of a 50% acid solution must be mixed with 25% acid solution to get 250 L of a 40% acid solution?
And can you guide me step by step. I was a bit confused on how to get the answer.
I know Mixture:amount x concentrate
and the table, but putting it all together is confusing me Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 50% solution needed
Let = liters of 25% solution needed
given:
(1) = liters of salt in final solution
-----------------
In words:
(liters of salt) / (liters of total solution) = 40%
(2)
Multiply both sides of (1) by , and
subtract from (2)
(2)
(1)
and, since
150 liters of 50% solution and 100 liters of 25% solution are needed
check answer:
OK
