SOLUTION: I have 1 oz of pure 99.85% glacial acetic acid, I need to dilute it with water down to 10%. How much water in gallons or ounces do I need?

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Question 1134733: I have 1 oz of pure 99.85% glacial acetic acid, I need to dilute it with water down to 10%. How much water in gallons or ounces do I need?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.9985%2A1+=+.9985+ oz of acid in the
original mixture
-------------------------
Let +x+ = the oz of water to be added
+.9985+%2F+%28+1+%2B+x+%29+=+.1+
+.9985+=+.1%2A%28+1+%2B+x+%29+
+.9985+=+.1+%2B+.1x+
+.1x+=.8985+
+x+=+8.985+
8.985 oz of water must be added
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check:
+.9985+%2F+%28+1+%2B+8.985+%29+=+.1+
+.9985+%2F+9.985+=+.1+
OK