If drinking water contains 1 ppm of fluoride what is the mol

If drinking water contains 1 ppm of fluoride, what is the molarity of F- in the water? How many grams of

NaF would be required for a day’s worth of water for a household? Assume the volume of the solution is 400 gallons. (1 gal = 3.785 L)

If drinking water contains 1 ppm of fluoride, what is the molarity of F- in the water? How many grams of

NaF would be required for a day’s worth of water for a household? Assume the volume of the solution is 400 gallons. (1 gal = 3.785 L)

If drinking water contains 1 ppm of fluoride, what is the molarity of F- in the water? How many grams of

NaF would be required for a day’s worth of water for a household? Assume the volume of the solution is 400 gallons. (1 gal = 3.785 L)

concentration of F- = 1 ppm

= 1 mg / L

= 1.0 x 10^-3 g / L

= 1.0 x 10^-3 / 19

= 5.26 x 10^-5 M

Molarity of F- = 5.3 x 10^-5 M

volume of solution = 400 gal

= 400 x 3.785 L

= 1514 L

1 L ---------------> 5.26 x 10^-5 mol

1514 L ---------------> ??

moles of NaF = 0.0796

mass of NaF required = 3.34 g