Nutrition experts recommend that you drink at least 8 cups of water daily. If your local water supply contains 1.00 part fluoride (by mass) per million parts water, how many milligrams of fluoride would you consume daily in your 8 cups of water? (use 1.00 g cm^-3 as the density of water)
The Attempt at a Solution
I just don't know how to set this up. I tried putting 1.00 part fluoride over 1 million parts water, but that just made a mess. Fluoride is in parts and I have to convert that to milligrams. I'm lost on how to do that.