Explain naf is added to fluoridate the water

Reference no: EM13228064

A sample of hard water contains about 2.0 x 10^-3 M Ca^2+. A soluble fluoride-containing salt such as NaF is added to "fluoridate" the water (to aid in the prevention of dental cavity). What is the maximum concentration of F- that can be present without precipitating CaF2?

Reference no: EM13228064

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