Problema Solution
a chemist wants ti create a solution that is 36% acid. how many liters of a 60% acid solution must be added to 30 liters of a 13% acid solution to obtain this 36% acid mixture?
Answer provided by our tutors
let
x = the number of liter of a 60% acid solution
0.60x + 0.13*30 = 0.36(v + 30)
by solving we find
x = 28.75 l
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28.75 liters of 60% acid solution should be used for the mixture.