You are the public health officer in the water treatment facility for a city of 50,000 people. A concentration of 1.0 ppm fluride in the drinking water is sufficient for the purpoise of helping to prevent tooth decay. The compound normally chosen for fluoridation is the same as is found in some toothpastes, sodium fluoride (NaF). Calculate how many kilograms of sodium fluride you will need to purchase in order to fluoridate the city's water supply for one year, based upong your estimate that the average daily consumption of water is 150 gallons per person   You will find the following information helping in solving the problem below. Sodium fluride, NaF, is 45.0% fluride by mass.  1 ppm means "one part per million" by mass, e.g. 1 g of fluoride peron million grams of water 1 gallon = 3.79 L 1 year = 365 days 1 ton = 2000lb

Chemistry by OpenStax (2015-05-04)
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Chapter15: Equilibria Of Other Reaction Classes
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You are the public health officer in the water treatment facility for a city of 50,000 people. A concentration of 1.0 ppm fluride in the drinking water is sufficient for the purpoise of helping to prevent tooth decay. The compound normally chosen for fluoridation is the same as is found in some toothpastes, sodium fluoride (NaF). Calculate how many kilograms of sodium fluride you will need to purchase in order to fluoridate the city's water supply for one year, based upong your estimate that the average daily consumption of water is 150 gallons per person

 

You will find the following information helping in solving the problem below. Sodium fluride, NaF, is 45.0% fluride by mass. 

1 ppm means "one part per million" by mass, e.g. 1 g of fluoride peron million grams of water

1 gallon = 3.79 L

1 year = 365 days

1 ton = 2000lb

1 lb = 453.6 g 

Density of water = 1.0 g/mL 

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