Solved: Tooth enamel is composed of hydroxyapatite, whose
Chapter 10, Problem 98AE(choose chapter or problem)
Problem 98AE
Tooth enamel is composed of hydroxyapatite, whose simplest formula is Ca5(PO4)3OH, and whose corresponding Ksp = 6.8 × 10–27. As discussed in the “Chemistry and Life” box on page 755, fluoride in fluorinated water or in toothpaste reacts with hydroxyapatite to form fluoroapatite, Ca5(PO4)3F, whose Ksp = 1.0 × 10–60 (a) Write the expression for the solubility-constant for hydroxyapatite and for fluoroapatite (b) Calculate the molar solubility of each of these compounds
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