SOLUTION: how many oz of water do i add to 32 oz of 40% acid solution if i want a 20% solution and the steps you take to get it

Question 922936: how many oz of water do i add to 32 oz of 40% acid solution if i want a 20% solution and the steps you take to get it
Found 2 solutions by ankor@dixie-net.com, Alan3354:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
how many oz of water do i add to 32 oz of 40% acid solution if i want a 20% solution.
:
let w = amt of water required to accomplish this
the amt of acid remains the same, only the per cent changes, therefore
.40(32) = .20(w+32)
12.8 = .2w + 6.4
12.8 - 6.4 = .2w
6.4 - .2w
w = 6.4/.2
w = 32 oz of water to be added.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Never add water to acid.
Add the acid to the water.
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