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-   -   Math on fluoride (https://www.askmehelpdesk.com/showthread.php?t=188697)

  • Feb 26, 2008, 07:37 PM
    Hippiefeet
    Math on fluoride
    If Fluoride has a ratio of 3.73 ppm in brewed black tea how many milligrams would be in a given amount?
  • Feb 27, 2008, 12:21 AM
    robkelly2242
    One ppm is 1 mg/liter. Do the math.

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