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tooth enamel has the chemical formula, ca5(po4)3(oh). what is the percent composition of the elements present?

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Lulama Klaas
Lulama KlaasLv10
27 Nov 2020

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Related questions

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.

tooth enamel in mainly hydroxyapatite, Ca10(PO4)6(OH)2. If 1.117gof tooth enamel reacts with acid to give 1.111g of calciumchloride, what is the percentage of hydroxyapatite in the toothenamel sample?

1) 20.0 mL of 0.01 M AgNO3 and 30.0 mL of 0.010 M K2CrO4 are mixed together and allowed to react. Will a precipitate form? What will be the molarities of the silver ion and chromate ion at equilibrium?

2) Tooth enamel is composed of hydroxyapatite, whose simplest formula is Ca5(PO4)3OH and whose corresponding Ksp = 6.8 x 10^-27. As discussed, fluoride in fluorinated water or in toothpaste reacts with the hydroxyapatite to form fluoroapatite, Ca5(PO4)3F whose Ksp = 1.0 x 10^-60.

a) write the expression for the solubility constant for hydroxyapatite and for fluoroapatite.

b) calculate the molarity of each of these compounds.

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