SOLUTION: 3 ml of a 66% acid solution was mixed with 8 ml of water. Find the concentration of the new mixture.

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Question 1015032: 3 ml of a 66% acid solution was mixed with 8 ml of water. Find the concentration of the new mixture.
Answer by ikleyn(52784) About Me  (Show Source):
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3 ml of a 66% acid solution was mixed with 8 ml of water. Find the concentration of the new mixture.
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3 ml of a 66% acid solution contains about 2 ml of the pure acid.

So, in the new mixture you have 2 ml of the pure acid per 11 ml of the total volume.

Thus the new mixture is %282%2F11%29%2A100 = 18.(18)% acid solution.