a) It is considered that a solid substance has an orthorhombic structure, Since the edges of the unit cell are a = 3.50A, b = 4.0 A, c = 5.5 A, calculate the d and 20 positions for the 111 plane expected in the diffraction pattern as a result of Cuka radiation (A = 1.54 A). b) What is the Miller index of the plane intersecting the crystal axes (2a, 1b, -3c)?

a) It is considered that a solid substance has an orthorhombic structure, Since the edges of the unit cell are a = 3.50A, b = 4.0 A, c = 5.5 A, calculate the d and 20 positions for the 111 plane expected in the diffraction pattern as a result of Cuka radiation (A = 1.54 A). b) What is the Miller index of the plane intersecting the crystal axes (2a, 1b, -3c)?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter27: Molecular Fluorescence Spectroscopy

Section: Chapter Questions

Problem 27.6QAP

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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.

Question

a) It is considered that a solid substance has an orthorhombic structure. Since the edges of the unit
cell are a = 3.50Å, b = 4.0 A, c = 5.5 Å, calculate the d and 20 positions for the 111 plane expected in
the diffraction pattern as a result of Cuka radiation (A = 1.54 Å).
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b) What is the Miller index of the plane intersecting the crystal axes (2a, 1b, -3c)?
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