SOLUTION: The mad scientists in a chemistry lab have 75 ml of pure acid which must be diluted to a solution that is 10% acid. How many milliliters of water should they add?

Question 475768: The mad scientists in a chemistry lab have 75 ml of pure acid which
must be diluted to a solution that is 10% acid. How many milliliters
of water should they add?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Scientists in a chemistry lab have 75 ml of pure acid which must be diluted to a solution that is 10% acid.
How many milliliters of water should they add?
:
Let x = amt of water required
:
75 = .10(x+75)
75 = .10x = 7.5
75 - 7.5 = .10x
67.5 = .10x
x =
x = 675 ml of water required
:
:
Check
75 = .10(675+75)
75 = .10(750)
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