SOLUTION: a pharmascist need 20% boric adic solution.How much 60% boric acid solution must be added to 7.5 liters of an 8% boric acid solution to get the desired strength
Algebra ->
Customizable Word Problem Solvers
-> Mixtures
-> SOLUTION: a pharmascist need 20% boric adic solution.How much 60% boric acid solution must be added to 7.5 liters of an 8% boric acid solution to get the desired strength
Log On
Question 488179: a pharmascist need 20% boric adic solution.How much 60% boric acid solution must be added to 7.5 liters of an 8% boric acid solution to get the desired strength Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! .6n+7.5(.08)=.20(n+7.5)
.6n+.6=.2n+1.5
.4n=.9
n=.9/.4=2.25 liters of 60% boric acid solution needed..
