1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
blsea [12.9K]
2 years ago
9

Hydroxyapatite, Ca₅(PO₄)₃(OH), is the main mineral component of dental enamel, dentin, and bone. Coating the compound on metalli

c implants (such as titanium alloys and stainless steels) helps the body accept the implant. When placed in bone voids, the powder encourages natural bone to grow into the void. Hydroxyapatite is prepared by adding aqueous phosphoric acid to a dilute slurry of calcium hydroxide. (b) What mass (g) of hydroxyapatite could form from 100. g of 85% phosphoric acid and 100. g of calcium hydroxide?
Chemistry
1 answer:
4vir4ik [10]2 years ago
6 0

The equation of the reaction is:

         5Ca(OH)₂ + 3H₃PO₄ ---> Ca₅(PO₄)₃(OH) + 9H₂O.

Based on the data provided, the mass of hydroxyapatite formed is  135.62 g.

<h3>What is hydroxyapatite ?</h3>

Calcium apatite has the chemical formula Ca5(PO4)3(OH), however it is most commonly written Ca10(PO4)6(OH)2 to indicate that the crystal unit cell consists of two entities. Hydroxyapatite, also known as hydroxylapatite (HA), is a naturally occurring mineral form of calcium apatite. The complex apatite group's hydroxyl endmember is called hydroxyapatite. Fluorapatite or chlorapatite can be created by substituting fluoride, chloride, or carbonate for the OH ion. It forms a hexagonal crystal structure when it crystallizes. Powdered hydroxyapatite is completely white. Apatites that are found in nature can also exhibit colorations that resemble dental fluorosis, such as brown, yellow, or green.

Human bone contains up to 50% by volume and 70% by weight of bone mineral, a modified form of hydroxyapatite.

To learn more about hydroxyapatite from the given link:

brainly.com/question/12797496

#SPJ4

You might be interested in
A decomposition reaction, with a rate that is observed to slow down as the reaction proceeds, has a half-life that does not depe
mr_godi [17]

Answer: A plot of the natural log of the concentration of the reactant as a function of time is linear.

Explanation:

Since it was explicitly stated in the question that the half life is independent of the initial concentration of the reactant then the third option must necessarily be false. Also, the plot of the natural logarithm of the concentration of reactant against time for a first order reaction is linear. In a first order reaction, the half life is independent of the initial concentration of the reactant. Hence the answer.

3 0
4 years ago
Which two substances bind using a lock-and-key mechanism?
Katen [24]
<span>The answer is the first option. Enzyme and substrate bind using a lock-and-key mechanism. Enzymes act on a specific substrate and a substrate needs a specific enzyme, this is what is called a lock-and-key mechanism. Enzymes and substtates are like a key and a lock, one is for each other.</span>
4 0
3 years ago
Read 2 more answers
A drought is best defined as
Lapatulllka [165]
A drought is a period of drier-than-normal conditions that results in water-related problems.<span> When rainfall is less than normal for several weeks, months, or years, the flow of streams and rivers declines, water levels in lakes and reservoirs fall, and the depth to water in wells increases.</span>
5 0
3 years ago
How many chiral carbon atoms does the monosaccharide altrose have?
lina2011 [118]
4 In the open chain, 5 in the cyclic. Just like glucose.
6 0
3 years ago
train travel from hong kong to beijing it traveled at an average speed of 160 km/m in the first 4 hours. after that it traveled
Nonamiya [84]

Answer:

7 hours

Explanation: step 1. 160x4=640

step 2. 1180-640=540

step 3. 540÷180=3

step 4. 3+4=7

5 0
3 years ago
Read 2 more answers
Other questions:
  • In what way would readings from a digital thermometer be preferable to those from a liquid-based thermometer?
    9·2 answers
  • Explain why some fibres are called synthetic
    5·1 answer
  • Jenna is a scientist in a chemistry lab. Her experiment did not support her current theory. What should she do next?
    13·2 answers
  • . Which of these is an example of a scientific observation? *
    12·1 answer
  • Directions: Name each of the following compounds. If a name is given, write the formula.
    8·1 answer
  • What is the formula for nickel(III) carbide?
    11·2 answers
  • Plz help asap<br> for Edmentum/plato
    12·1 answer
  • Density of water is 1 g/ml. If a piece of wood with a density of 5 g/ml is
    9·1 answer
  • Please help....thank you
    11·1 answer
  • When washing tableware the water should be at least
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!