Shoifuton stulib vito gostmenop isaillent elle SECTION 4: APPLICATION 7. Bones and teeth consist mostly of a compound called hydroxyapatite, Ca10(PO4)6(OH)2. This compound contains PO4³- and OH-ions. (a) Do you expect hydroxyapatite will be an acid or a base? Why? (b) Foods that contain sucrose form lactic acid in the mouth and the pH drops. As a result, eating candy promotes a reaction between hydroxyapatite and H*(a (aq). Balance the skeleton reaction: Ca10(PO4)6(OH)2 + H* (aq) → CaHPO4(s) + H₂O(1) + Ca²+ (aq) (c) At lower pH values, the CaHPO4(s) also reacts with H*(a (aq): CaHPO4(s) + H+ (aq) → Ca2+ + H₂PO4 (aq) Dentists and toothpaste manufacturers warn that eating candy promotes tooth decay. What chemical evidence have you seen to support this advice?
Shoifuton stulib vito gostmenop isaillent elle SECTION 4: APPLICATION 7. Bones and teeth consist mostly of a compound called hydroxyapatite, Ca10(PO4)6(OH)2. This compound contains PO4³- and OH-ions. (a) Do you expect hydroxyapatite will be an acid or a base? Why? (b) Foods that contain sucrose form lactic acid in the mouth and the pH drops. As a result, eating candy promotes a reaction between hydroxyapatite and H*(a (aq). Balance the skeleton reaction: Ca10(PO4)6(OH)2 + H* (aq) → CaHPO4(s) + H₂O(1) + Ca²+ (aq) (c) At lower pH values, the CaHPO4(s) also reacts with H*(a (aq): CaHPO4(s) + H+ (aq) → Ca2+ + H₂PO4 (aq) Dentists and toothpaste manufacturers warn that eating candy promotes tooth decay. What chemical evidence have you seen to support this advice?
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Snolfatop atulin v
golsteoroo isalent el len
SECTION 4: APPLICATION
7. Bones and teeth consist mostly of a compound called hydroxyapatite,
Ca10(PO4)6(OH)2. This compound contains PO4³- and OH-ions.
3-
(a) Do you expect hydroxyapatite will be an acid or a base? Why?
(b) Foods that contain sucrose form lactic acid in the mouth and the pH drops.
As a result, eating candy promotes a reaction between hydroxyapatite and
H* (aq). Balance the skeleton reaction:
Ca10(PO4)6(OH)2 + H*(aq) → CaHPO4(s) + H₂O(1) + Ca²+ (aq)
(c) At lower pH values, the CaHPO4(s) also reacts with H*(aq):
->>>
CaHPO4(s) + H*(aq) · Ca²+ + H₂PO4 (aq) Dentists and toothpaste manufacturers
warn that eating candy promotes tooth decay. What chemical evidence have
you seen to support this advice?
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