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 at the midpoint of each edge. (a) Is this unit cell simple, body-centered, or face-centered? (b) If the unit cell edge length is 3.84 Å, what is the density of perovskite (in g/cm3)?

Ti4+ ion in each corner = 18×8 =1 Ca2+ ion in the body center = 1 O2- ions at the midpoint of each…

Answered: Some oxide superconductors adopt a…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter21: The Chemistry Of The Main Group Elements

Section: Chapter Questions

Problem 124SCQ

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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 O^2- ions at the midpoint of each edge. (a) Is this unit cell simple, body-centered, or face-centered? (b) If the unit cell edge length is 3.84 Å, what is the density of perovskite (in g/cm³)?

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