SOLUTION: pure acid is to be added to a 5% acid solution to obtain 95L of 68% solution. what amounts of each should be used?
How many Liter of 100% pure acid should be used to make the so
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How many Liter of 100% pure acid should be used to make the so
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Question 373433: pure acid is to be added to a 5% acid solution to obtain 95L of 68% solution. what amounts of each should be used?
How many Liter of 100% pure acid should be used to make the solution? ____L
How many liters of the 5% solution should be in the mixture? ___L Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! pure acid is to be added to a 5% acid solution to obtain 95L of 68% solution.
what amounts of each should be used?
How many Liter of 100% pure acid should be used to make the solution? ____L
:
Let x = amt of pure acid to be used
then
(95-x) = amt of 5% acid needed
:
.05(95-x) + x = .68(95)
4.75 - .05x + x = 64.6
-.05x = x = 64.6 - 4.75
.95x = 59.85
x =
x = 63 L of pure acid required to make 95 liters of a 68% solution
:
Check solution in original equation (32 L of 5% solution required)
