You are given the following data  : Peak order (n)                                                  Diffraction Angle (2q) 1                                                                        38.6 2                                                                        55.7 3                                                                        70.0  Determine whether sample is fcc or bcc or neither. Give  reason for your choice

Q: ow does fluorescence work in bulk semiconductors?

A: The term bulk semiconductor refers to the semiconductors which have large preservation of atoms and…

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

A: Edges of unit cell: a = 3.50 A b = 4.0 A c = 5.5 A Miller indices of plane for which diffraction is…

Q: UV-Vis spectrophotometry is used to determine copper. Aside from UV-Vis spectrophotometry what other…

A:

Q: ) The refractive index (μ) of water is found to have the values 12.9,12.5,12.3 and 11.8. Calculate…

A: The question is based on the concept of analytical treatment. we have been given refractive indices…

Q: a) Find the Linear density for FCC (111) direction assuming the atomic radius R-0.230mm b) Find the…

A: Solutions                       Given that A) Find the linear density for FCC B) Find the linear…

Q: 3. Discuss the relationship of refractive index to molecular polarizability.

A: Refractive index :- Banding of ray of light when ray pass from one medium to other medium.…

Q: A fluorophore that is 'excited' by light with a wavelength of 570 nanometers (nm), would, by…

A: Fluorophore is excited by the light with wavelength of 500nm.

Q: During a lunar exploration an unknown crystalline substance is discovered whose external morphology…

A: a) Determination of the type of crystal: Ɵ Sin Ɵ Sin2 Ɵ Simplest form Multiply by 3 (h,k,l)…

Q: (e) Platinum has an FCC crystal structure. The atomic radius of platinum is 0.1387 nm. An X-ray…

A: The diffraction of X-rays from crystal surface follow Bragg's equation, nλ=2dsinθn=order of…

Q: What is band broadening? Explain the phenomenon of eddy diffusion.

A: These are terms with reference to chromatography:

Q: A 400 Å thick film of ZrO2 (n = 2.10) is deposited on glass (n = 1.50). Determine the normal…

A: Answer:

Q: Calculate the energy required for a transition from nx = ny = n, = 1 to n, = ny = 1, n, = 2 for an…

A: The energy can be found using below formula.

Q: 1. For FCC (face-centered cubic) platinum (Pt, having an atomic radius of 0.1387 nm), determine the…

A: Given Type of Structure    = FCC Atomic Radius  ( R )= 0.1387 nm  Plane = ( 3 1 1 )  Wavelength =…

Q: A blue gold ring is found to be 75% gold and 25% indium. Draw a particle diagram of the blue gold…

A: The mixture of metal are referred as an alloy. In other words, it the combination of one or more…

Q: Chemistry Question

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: If unpolarized light shines through two polarizing filters oriented at 90 degrees to each other,…

A: This can be solved by using concept of polarization using Malus law. Malus law states, I = IoCos2(θ)

Q: A crystalline sample has a diffraction peak at 17.2°. What is the corresponding d space in pm?…

A: Using Bragg's Law we Can solve this problem and calculate the value of 'd'

Q: where lots molar absorptivity, c is the concentration of the solution, and the cuvette. (1) Light…

A: We have to find the absorbance of coumarin due at 800 nm, given the length of cuvette is 1 cm,…

Q: A solution of copper(II) sulfate is observed to be blue in color. The maximum absorbance is expected…

A: Many substances absorb visible light. When a substance absorbs certain frequencies (colors) of…

Q: Explain why the zinc ion should not interfere with absorbance measurements of the copper ion.

A: Interference of Zinc ion in the absorbance measurements of Copper ion.

Q: 5. For which set of crystallographic planes will a first-order diffraction peak occur at a…

A:

Q: A crystalline sample has a diffraction peak at 15.6°. What is the corresponding d space in pm?…

A: n = 1 wavelength = 90.1 pm theta = 15.6 degree d =? pm

Q: The refractive index of water is 0.33 .a 1.33 .b O 1.5 .c O 0.5 .d O

A: Refractive index is inversely proportional to velocity of light in that particular medium. So more…

Q: 2) The most intense peak of the x-ray diffraction pattern obtained from a freshly laid metallic…

A:

Q: Many mangnetic materials are magnets. O True O False

A: Many magnetic materials are magnets-- This statement is false

Q: In TEM, we can obtain a diffraction pattern of a thin sample through the use of objective apertures…

A:

Q: Which type of magnetic material cannot be used to makepermanent magnets, a ferromagnetic substance,…

A: Permanent Magnets A magnet that retains its magnetic properties in the absence of an inducing field…

Q: For BCC (body-centered cubic) chromium (Cr, having atomic radium of 0.1249 nm), determine the…

A: The expression of Bragg’s law is shown below: nλ = 2d sin θ where; n = order of reflection λ=…

Q: a) For bcc lattice, which values of hkl give reflection? b) For fcc lattice, which values of hkl…

A: Lattice may be simple cubic, face centered, body center and diamond lattice.

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.