Question 935841: I can only find 4% solution, but I need .12 solution. How much water do I add to get the .12% solution? Found 2 solutions by TimothyLamb, josmiceli:Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = ml of 4% acid/water = ml of 96% water/acid
y = ml of 100% water
z = ml of 0.12% acid/water = ml of 99.88% water/acid
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0.96x + 1.0y = 0.9988(x + y)
x = 10
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put the system of linear equations into standard form
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0.96x + 1.0y = 0.9988x + 0.9988y
x = 10
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-0.0388x + 0.0012y = 0
x = 10
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x = ml of 4% acid/water = 10
y = ml of 100% water = 323.33333
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You can put this solution on YOUR website! say you have 1 liter of 4% solution
Then you have liters of
concentrate ( whatever it is )
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Let = liters of water to be added
I can say:
32.333 liters of water needs to be added
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check:
OK
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Note that you can scale up the liters of
solution to whatever amount you want
