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2.0 g of F per 70 kg of body weight cause death. nevertheless, in oder to prevent tooth decay, F ions are added to drinking water at a concentration of 1 mg of F ions per L of water. How many liters of flouridated drinking water would a 70 kg person have to consume in one day to reach this toxic level? How many kg of sodium flouride would be needed to treat a 7.49x 10^6 -gal reservior?

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