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Problem 8. When it is found in well water, fluoride is sometimes due to the dissolution of the mineral fluoriteCaFz(s) which dissolves according to \mathrm{CaF}_{2 / \mathrm{s}]}=\mathrm{Ca}^{2+}+2 \mathrm{~F}- For this mineral at 25 °C, Ksp = 10-0. In the U.S., any level higher than 4 ppm fluoride exceeds the federal drinking water standard. In Kenya, levels as high as 35 ppm fluoride can be found. If the water is in equilibrium with fluorite at 25 °C, plot the concentration of Ca²* in molarity vs. concentration of fluoride in ppm from 1 to 35 ppm. Don't forget to convert the fluoride concentration to molarity for the calculation.

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