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Old Dec 8th 2014, 01:24 PM   #1
boobunkin1
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help diluting a solution

I need to dilute a 70 % solution to a 25 % solution. lets say I have 100 cc of the 70% solution. how many cc to I add to make it into a 25 % solution. any help will be appreciated.
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Old Dec 10th 2014, 02:18 PM   #2
bjhopper
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Originally Posted by boobunkin1 View Post
I need to dilute a 70 % solution to a 25 % solution. lets say I have 100 cc of the 70% solution. how many cc to I add to make it into a 25 % solution. any help will be appreciated.
100 ml of 70% solution contains 70 ml of solute liquid
70 ml =0.25 x x =total ml of 25% solute =280 ml so 180 ml of solvent must be added to the given 100ml
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