SOLUTION: a chemist must mix 8 L of a 40% acid solution with some 70% solution to get a 50% solution. how much of the 70% solution should be used?
Algebra.Com
Question 399310: a chemist must mix 8 L of a 40% acid solution with some 70% solution to get a 50% solution. how much of the 70% solution should be used?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(liters of acid in final solution)/(liters of final solution) = 50%
Acid in 40% solution =
Let = liters of 70% solution to use
= liters of acid in 70% solution
--------------------------------------------
4 liters of 70% solution are needed
check answer:
OK
RELATED QUESTIONS
A chemist must mix 8 liters of 40% acid solution with some 70% solution to obtain a 50%... (answered by checkley77)
a chemist mixes 8 l of 40% acid solution with some unknown quantity of 70% solution to... (answered by lwsshak3)
A chemist must mix 16 liters of a 40% acid solution with some of a 70% solution to get a... (answered by mananth,Fakefool5)
A chemist must mix 8 liters of a 70% solution of potassium chloride with some 40%... (answered by ptaylor)
a chemist needs to mix 20L of a 40% acid solution with some 70% acid solution to obtain a (answered by checkley77)
Please help with this.
If you mix 8 liters of a 40% solution of acid with some 70%... (answered by Nate,checkley71)
Jack wants to mix a 70% acid solution with 20% acid solution to get 80 L of 50% solution... (answered by norymae)
A chemist wants to get a 50% solution by mixing 8 L of 60% acid solution with 20% acid... (answered by josgarithmetic)
A chemist must mix 6 liters of a 30% acid solution with some of an 80% acid solution to... (answered by checkley79)