Question
In: Chemistry
1. Magnesium oxide has a sodium chloride crystal structure. Determine the lattice parameter for sodium chloride...
1. Magnesium oxide has a sodium chloride crystal structure. Determine the lattice parameter for sodium chloride and magnesium oxide
2.Calculate the theoretical volume change accompanying a polymorphic transformation in a pure metal from the FCC to BCC crystal structure.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
Based on your knowledge of the crystal structure, show a calculation of the lattice parameter. Should...
Based on your knowledge of the crystal structure, show a
calculation of the lattice parameter. Should each peak give the
same value of lattice parameter?
Consider a cubic I crystal with a lattice parameter of 3 Å, and a single atom...
Consider a cubic I crystal with a lattice parameter of 3 Å, and
a single atom at each lattice point. Calculate the
structure factor (F) and its square magnitude |?|2 for
the primitive and conventional unit cells. Indicate for each the
constraints on ℎ+?+? for systematic absences
(|?|2=0).
Silicon has a diamond crystal structure with lattice constant of a= 0.543 nm and molar mass...
Silicon has a diamond crystal structure with lattice constant of
a= 0.543 nm and molar mass of 28.08 g/mole. (12 points) a) Explain
in brief the position of silicon atoms in the unit cell and deduce
the corresponding Bravais lattice and state the equivalent
positions b) Calculate the density of silicon in g/cm3. c)
Calculate the number of silicon atoms per square centimeter (# Si
atoms/cm2) on the (100) and (111) faces
A. Determine the linear density for BCC lithium, which has a lattice parameter of 0.35089 nm,...
A. Determine the linear density for BCC lithium, which has a
lattice parameter of 0.35089 nm, in the [100], [110], and [111]
directions. Which of these directions is close packed?
B. Determine the planar density and packing fraction for BCC
lithium in the (100), (110), and (111) planes. Which, if any, of
these planes is close packed?
C. A diffracted x-ray beam is observed from the (220) planes of
iron at a 2θ angle of 99.1o when x-rays of 0.15418...
In an experiment to determine the empirical formula of magnesium oxide a student obtained the following...
In an experiment to determine the empirical formula of magnesium
oxide a student obtained the following data:
Mass of crucible and lid: 29.1234 g
Mass of crucible and lid + magnesium: 29.9345 g
Mass of crucible and lid + magnesium oxide: 30.7450 g
Obtain the empirical formula of magnesium oxide using the above
data
Lithium adopts a BCC structure at room temperature with a lattice parameter equal to 3.51 Å. ...
Lithium adopts a BCC structure at room temperature with a
lattice parameter equal to 3.51 Å.
a).Find the Li-Li pairs corresponds to the 3 shortest distances.
Assume the correlation is between a Li at (x,y,z) and the Li at the
origin, i.e. (0, 0, 0). For example, the shortest Li-Li pair (also
known as Li-Li correlation) is given by the Li at (0,0,0) and the
Li at (0.5, 0.5, 0.5). Your answer should only show the
cooridinates of the Li...
Some oxide superconductors adopt a crystal structure similar to that of perovskite CaTiO3. the unit cell...
Some oxide superconductors adopt a crystal structure similar to
that of perovskite CaTiO3. the unit cell is cubic with a Ti4+ ion
in each corner, a Ca2+ ion in the body center and O2- ions ate the
midpoint of each edge. (a) if the unit cell edge length is 3.84 A,
what is the density of perovskite in g/cm3?
Sodium crystallizes in the bcc structure with the lattice constant a=4.23 Å. a. Calculate the carrier...
Sodium crystallizes in the bcc structure with the lattice
constant a=4.23 Å. a. Calculate the carrier concentration of Na and
give the result in units of cm-3 . b. Calculate the Fermi wave
length and give the Fermi energy in eV.
Calcium, magnesium, iron, manganese, nitrate, nitrite, chloride, and sodium are some of the most abundant ions...
Calcium, magnesium, iron, manganese, nitrate, nitrite, chloride,
and sodium are some
of the most abundant ions present in water samples. Two methods
(predominant polyvalent cations
and all polyvalent cations) have been used to measure Total
Hardness (TH). Discuss when
a) TH measured using the predominant polyvalent cations = TH
measured using all polyvalent cations
b) TH measured using the predominant polyvalent cations > TH
measured using all polyvalent cations
c) TH measured using the predominant polyvalent cations < TH
measured...
Calcium, magnesium, iron, manganese, nitrate, nitrite, chloride, and sodium are some of the most abundant ions...
Calcium, magnesium, iron, manganese, nitrate, nitrite, chloride,
and sodium are some
of the most abundant ions present in water samples. Two methods
(predominant polyvalent cations
and all polyvalent cations) have been used to measure Total
Hardness (TH). Discuss when
a) TH measured using the predominant polyvalent cations = TH
measured using all polyvalent cations
b) TH measured using the predominant polyvalent cations > TH
measured using all polyvalent cations
c) TH measured using the predominant polyvalent cations < TH
measured...
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