Planas mwerthe felovi qetions rgnding bydroaptis Phares tow al ork a.) How many
ID: 117840 • Letter: P
Question
Planas mwerthe felovi qetions rgnding bydroaptis Phares tow al ork a.) How many atoms are in the unit cell for Hap? b.) What are the unit cell parameters? Please use the attached diagram to determine. c.) Calculate the unit cell volume for HAp. d.) Calculate the density for HAp e.) Calculate the packing factor for HAp. f.) Derive an equation for calculating the specific surface area for hydroxyapatite particles consisting of unit cell dimension particles. Calculate the value for the specific surface area of these particles in meters squared per gram (m*2/g). What is interesting about the magnitude of this number? g.) How would you differentiate between a polycrystalline, a single crystalline, and a nanocrystalline sample of HAp?Explanation / Answer
UNIT CELL PARAMETER :-
The lattice constant,or lattice parameter,refers to the physical dimension of unit cells in a crystal lattice.Lattices in three dimensions generally have three lattice constants,referred to as a,b, and c.However, in the special case of cubic crystal structures,all of the constants are equal and we only refer to a.
Similarly , in the hexagonal crystal structures,the a and b constants are equal,and we only refer to the a and c constants.A group of lattice constants could be reffered to as lattice parameter.