SOLUTION: In yoir chemistry class you need a 3% boric acid solution. How many milimeters of 5% acid solution should be added to 40 milimeters of 2% boric acid solution to obtain the desired
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Question 886466: In yoir chemistry class you need a 3% boric acid solution. How many milimeters of 5% acid solution should be added to 40 milimeters of 2% boric acid solution to obtain the desired solution? Give the equation(s) you used to solve the problem and withe the answer Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! You may need to know the density of the 5% solution to do this right, and maybe need to know how the percent concentrations are expressed regarding mass/vol or mass/mass.
An estimation can be made using these as a system:
(