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

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: The mad scientists in a chemistry lab have 75ml of pure acid which must be diluted to a solution that is 10% acid. How many milliliters of water should they add? I used othe      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 484413: The mad scientists in a chemistry lab have 75ml of pure acid which must be diluted to a solution that is 10% acid. How many milliliters of water should they add? I used other sources and got an answer of 675 ml of water, but I don't know if it's right.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
a chemistry lab have 75ml 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 ml of water required
A simple equation based on the amt of acid
75 = .10(x+75)
75 = .1x + 7.5
75 - 7.5 = .1x
67.5 = .1x
x = 67.5%2F.1
x = 675 ml of water required