Find the planer density (Po) in (atom/mm) of (100) in a face centered cubic unit cell with lattice constant of 3.5 A, and determined the atomic radius

Q: The polypropylene (repeat unit CH3CHCH2) in a plastic object has a molar mass of 2.8x10^5 g/mol and…

A: Calculate the degree of polymerization: n=Molecular weight of polymerMolecular weight of…

Q: Given the HCP crystal diagram, what is the index (vector/plane) as indicated inside the unit cell…

A: Answer: The  hexagonal close packed crystal diagram (HCP) is shown here.

Q: Polonium is the only element known to crystallize in the simple cubic lattice. (a) What is the…

A: Bragg’s equation relating the wavelength and inter planar distance in a crystal is given below,…

Q: A fcc unit cell containing atoms of element (molar mass 60.4 g mol-1 ) has cell edge 4 × 10-8 cm.…

A: solid state  in Chemistry is the study of the structure, properties and the synthesis of solid…

Q: An element of atomic mass 98.5 g mol-1 occurs in fcc structure. If its unit cell edge length is 500…

A: In face centered cubic (fcc) lattice, there are ions or molecules present at the corners of cube and…

Q: Determine the miller indices for the directions in the cubic unit cell? D A, Figure.1

A: For A, Two points : (0,0,1) and (1,0,0) (0,0,1) - (1,0,0) = (-1,0,1) (100) Hence, the miller indices…

Q: If a closed packed structure is in NaCl type solid  , have radius of cation of 75 pm, what will be…

A: For AB type solid crystal, the relation between the ratio of cationic radius to the anionic radius…

Q: For a crystalline substance with a hexagonal unit cell, the distance interplanar d is given by the…

A: Given: a = 0.247 nm c = 0.679 nm Brag Plane = 002 To Calculate:  angle 2θ

Q: platinum crystallizes in a FCC lattice with all atoms at the lattice points It has a density…

A: For FCC , Z = 4 Let edge length of unit cell = a cm d = 1338.905 lb/ft3  = 1338.905 x 0.0160185 =…

Q: Calculate the separations of the planes {111}, {211}, and {100} in a crystal in which the cubic unit…

A: The interplanar spacing in a cubic system is the spacing between the planes in a particular family…

Q: What is the Miller index of the plane intersecting the crystal axes (2a, 1b, -3c)?

A: In crystal Lattices, Miller index is a notation system to represent crystallography of planes (…

Q: (а) Describe the relationship between the space lattice and unit cell. (b) Calculate the Miller…

A: a) A lattice is a standard design made of numerous little units known as unit cells. A unit cell is…

Q: At 1299ºC, where iron is still a solid (melting point 1538ºC), the unit cell for the most stable…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: Consider spherical nanoparticles of  copper with diameter of 10nm and 100nm A) Calculate the total…

A:

Q: is thought that a solid substance has an orthorhombic structure. Since the edges of the unit cell…

A: Welcome to bartleby !

Q: 1- Determine the Miller indices for the directions in the cubic unit cell shown in the following…

A: Miller indices are the reciprocal of the intercepts at the axis.

Q: Copper crystallizes in an fcc structure with unit cells of side 361 pm. (a) Predict the appearance…

A:

Q: The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318…

A: From given a and b lattice parameters and density, atomic weight, atomic radius we are calculating…

Q: Explain how the intensive properties of a material are reflected in the unit cell. Are all the…

A:

Q: Equivalent lattice points within the unit cell of a Bravais lattice have identical surroundings.…

A: This is a question from solid state. There are 7 crystal system and total 14 Bravais lattices…

Q: Solid KI has the so-called aCl structure. The shortest distance between the centre of a potassium…

A: Edge length of cube = 707pm

Q: b) Calculate the atomic packing factor for a metal that has a cubic unit cell with a lattice…

A: A unit cell is the regular repeated three-dimensional arrangement that makes up he entire lattice.…

Q: Determine the repeat distance, linear density, and packing fraction for FCC nickel, which has a…

A:

Q: When spheres of radius r are packed in a body-centered cubicarrangement, they occupy 68.0% of the…

A:

Q: What is the two-dimensional coordination number of a molecule in a squareclose packed layer?

A: The word "closest packed structures" refers to the most closely packed or space-efficient…

Q: hcp

A:

Q: If the density of solid chromium is 7.15 g/cm, what is the packing efficiency of Cr if it adopts a…

A: Given data:

Q: ) Use your knowledge of unit cell symmetry, dimensions and coordination geometry to compare and…

A:

Q: The radius of a single atom of a generic element X is 129 pm and a crystal of X has a unit cell that…

A: Applying concept of simple cubic system a= 2r

Q: 2. Determine the Miller indices for the planes shown in the given unit cell.

A: The Miller indices of the above plane can be calculated as follows

Q: A crystal has a cubic unit cell of 4.2 Å. Using a wavelength of 1.54 Å at which 2θ value would you…

A:

Q: The maximum proportion of the avalable volume that can be field with hard sphere identifes a )…

A: In crystallography, some volume of the crystal is filled by the particles (sphere) and some volume…

Q: Calculate the IPF (ionic packing factor) for UO2, which has the fluorite (CaF2) structure…

A:

Q: The orthorhombic unit cell of NiSO4 has the dimensions a= 634 pm, b = 784 pm, and c = 516 pm, and…

A:

Q: Determine the distance between nearest (110) planes in a simple cubic lattice with a lattice…

A: 1. Given data : Lattice constant a0 = 4. 83 A° Simple cubic lattice (110) planes The distance…

Q: Consider a hexagonal close-packed unit cell, as shown in the image. How many corner atoms are shown…

A:

Q: Sketch within a cubic cell the following Miller Indices: a. [0 -1 -1] b. [10 -2]

A:

Q: What are the Miller indices of the slip directions: (a) on the (111) plane in an FCC unit cell? (b)…

A: To determine the Miller indices of slip directions for the (111) plane in FCC unit cell and (011) in…

Q: prove that the rc/ra =0.225 for coord number 4 in ceramic crystal structur

A: We have given coordination number given is 4 we want to show that minimum cation to anion ratio…

Q: 1.List the point coordinates for all atoms that are associated with the FCC unit cell.

A: FCC cell refers to Face centered cubic lattice in which the atoms are present at the center of each…

Q: Describe the efficiency, in general, of copolymerisation and plasticisation in lowering melting…

A: A copolymer is also known as polymer and when two or more than two monomer combined as result…

Q: 4. Sodium crystallizes in the body-centered cubic structure with a=0.424 nm. Calculate the…

A: For Sodium:- m = 23g/mol     = 0.023kg/mol Na = 6.022 x 1023 a = 0.424nm = 4.24 x 10-10m

Q: What is the effect of temperature on molar conductivity?

A: The effect of temperature on molar conductivity has to be given,

Q: Determine the packing factor for the FCC cell. In a FCC cell, there are four lattice points per…

A: There are different types of packing of atoms within a unit cell. It can be: simple cubic FCC BCC…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.