SOLUTION: A chemist has 30 cc of a 12% solution of acid. He wishes to add enough water
to make a 4% solution of acid. How many cubic centimeters of water must be
added to the acid solution
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-> SOLUTION: A chemist has 30 cc of a 12% solution of acid. He wishes to add enough water
to make a 4% solution of acid. How many cubic centimeters of water must be
added to the acid solution
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Question 310276: A chemist has 30 cc of a 12% solution of acid. He wishes to add enough water
to make a 4% solution of acid. How many cubic centimeters of water must be
added to the acid solution? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A chemist has 30 cc of a 12% solution of acid.
He wishes to add enough water to make a 4% solution of acid.
How many cubic centimeters of water must be added to the acid solution?
:
Let x = amt of water required
:
Write an "amt of acid equation" the amts are equal, only the percentage changes
.12(30) = .04(x+30)
3.6 = .04x + 1.2
3.6 - 1.2 = .04x
2.4 = .04x
x =
x = 60 cc of water required
:
:
Confirm the equality of the amt of acid
.12(30) = .04(60+30)
3.6 = .04(90)
3.6 = 3.6
