SOLUTION: You are mixing a 10% hydrochloric acid solution with 1% hydrochloric acid solution to make 12 L of a 4.5% solution. How much of each original solution should you use? HELP IM FAILI
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: You are mixing a 10% hydrochloric acid solution with 1% hydrochloric acid solution to make 12 L of a 4.5% solution. How much of each original solution should you use? HELP IM FAILI
Log On
Question 569512: You are mixing a 10% hydrochloric acid solution with 1% hydrochloric acid solution to make 12 L of a 4.5% solution. How much of each original solution should you use? HELP IM FAILING AT THIS QUESTION. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = liters of 10% solution needed
Let = liters of 1% solution needed = liters of h. acid in 10% solution = liters of h. acid in 1% solution
given:
(1)
(2)
----------------------------
(2)
(2)
(2)
Subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
(1)
(1)
4.667 liters of 10% solution are needed
7.333 liters of 1% solution are needed
check:
(2)
(2)
(2)
(2)
(2)
OK- error due to rounding off
