SOLUTION: I laboratory tech nation needs to make a 21 L batch of a 40% acid solution how can the laboratory technician combine a batch of an acid solution that is a peer acid with another th

Question 1050621: I laboratory tech nation needs to make a 21 L batch of a 40% acid solution how can the laboratory technician combine a batch of an acid solution that is a peer acid with another that is 10% to get the desired concentration
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of pure acid needed
Let = liters of 10% acid solution needed
--------------------------------------------
(1)
(2)
----------------------------
(2)
(2)
(2)
Subtract (1) from (2)
(2)
(1)
--------------------

and
(1)
(1)
(1)
----------------------
7 liters of pure acid are needed
14 liters of 10% acid solution are needed
-------------------------------------
check:
(2)
(2)
(2)
(2)
(2)
(2)
OK

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