Bone is composed of collagen, water and minerals. The primary mineral is known as hydroxyapatite, Ca5(PO4)3OH. Write the formation reaction for hydroxyapatite.
Formation reaction involve all elements in elemental state.
5Ca(s) + 3/4 P4(s) + 1/2 H2(g) + 13/2 O2(g) -> Ca5(PO4)3OH(s)
Bone is composed of collagen, water and minerals. The primary mineral is known as hydroxyapatite, Ca5(PO4)3OH....
Bone is composed of collagen, water and minerals. The primary mineral is known as hydroxyapatite, Ca5(PO4)3OH. Write the formation reaction for hydroxyapatite.
Bone is composed of collagen, water and minerals. The primary mineral is known as hydroxyapatite, Cas(PO4)3OH. Write the formation reaction for hydroxyapatite.
Tooth enamel consists of hydroxyapatite, Ca5(PO4)3OH (Ksp = 6.8 x10-37). Fluoridated water has dramatically decreased cavities among children; fluoride ion added to drinking water reacts with Ca5(PO4)3OH to form the more decay-resistant fluoroapatite, Ca5(PO4)3F (Ksp = 1 x10-60). What is the molar solubility (S) of hydroxyapatite and fluoroapatite in water? Hint: Ca5(PO4)3OH dissociates into [Ca5(PO4)3]+ and OH- ions. Select one: a. Shydroxyapatite = 8.25 x10-19; Sfluoroapatite = 1.0 x10-30 b. Shydroxyapatite = 1.0 x10-30; Sfluoroapatite = 8.25 x10-19 c. Shydroxyapatite...
Tooth enamel consists of hydroxyapatite, Ca5(PO4)3(OH) with a Ksp of 6.8x10-37. In water the has the potential break down using the reaction: Ca5(PO4)3(OH) (s) « 5Ca2+(aq) + 3PO33-(aq) + OH-(aq) Fluoride ions are added to the water to react with the Ca5(PO4)3(OH) and form the m ore tooth decay-resistant fluoride apatite, Ca5(PO4)3F (Ksp=1.0x10-60). Fluorinated water has dramatically decrease cavities in children, (a) calculate the solubility of Ca5(PO4)3(OH) in water and (b) will the Ca5(PO4)3F be more or less soluble?
3. Tooth enamel consists of the mineral hydroxyapatite, Cas(PO4)3OH, which has Ksp = 6.8 x 10-37. a. (10 points) Fill the in the ICE Box for the equilibrium of hydroxyapatite in water. You may use "x" or "S" for the changes. Cas(PO4)2OH(s) = 5 Ca2+ (aq) + 3 PO43- (aq) + OH- (aq) Initial Change Equilibrium b. (10 points) Write an expression for Ksp in terms of the concentrations of product. C. (10 points) Calculate the solubility of hydroxyapatite in...
Freshly dissected cortical bone contains ~10 vol.%water. Dried cortical bone contains ~70 wt.% minerals and ~30 wt.% collagen proteins. The density of carbonated hydroxyapatite is ~2.8 g/cm3and the density of dried collagen is ~1.3 g/cm3 . a.Calculate the volume percentage of minerals and proteins (each) in dehydrated bone. b.Calculate the volume percentage of minerals and proteins (each) in hydrated bone.
(Q#1) Hydroxyapatite has the formula Ca5(PO4)3(OH) and is the main mineral component of dental enamel and bone, and encourages bone growth when placed as bone graft. Hydroxyapatite is prepared from aqueous acid and dilute calcium hydroxide solution. If you mix 115 g of 80.2 % by mass phosphoric acid solution with 74.8 g of calcium hydroxide, what mass in g of hydroxypatite is formed assuming the reaction goes to completion? (Q#2) Seratonin is a chemical neurotransmitter in the brain and...
Nutrition 223 Chapter 12 The Major Minerals and Water 1. The major dietary contributor of calcium in the typical American diet is: a. dairy products. b. fortified cereals. c. dark green vegetables. d. salmon. 2. The hormone–triggered actions which increase blood calcium levels include all of the following except: a. increased kidney loss of calcium. b. increased calcium absorption. c. increased bone calcium resorption. d. increased kidney resorption of calcium. 3. The structural matrix of bones and teeth is composed...