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12.2 Show that the minimum cation-anion radius ratio for a coordination number of 4 is þ.225. Anion () Cation ()

12.2 Show that the minimum cation-anion radius ratio for a coordination number of 4 is þ.225. Anion () Cation ()

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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12.2 Show that the minimum cation-anion radius ratio for a coordination number of 4 is p.225. Anion (4) Cation ( 12.14 The unit cell for MgFe:O: (MgO-Fe:0:) has cubic symmeiry with a unit cell edge length of 0.836 nm. If the density of this material is 4.52 g/cm, compute its atomic packing factor. For this computation, you will need to use ionic radilisted in Table 12.3. 12 44 A three-polnt benaing test Is pertormed on a glass specimen having a rectangular cross section of helght d = 5 mm (0.2 In.) and wiath b = 10 mm (0.4 n.); the alstance between support polnts is 45 mm (1.75 In.). (a) Compute the fexural strength irthe load at fracture is 200 N (65 Ib). (D) The polnt of maximum defection Ay occurs at the center of the specimen and Is described by (1211) where E Is the modulus of elasticity and I Is the cross-sectional moment of Inertla Compute ay at a load of 200 N (00 lb).
Transcribed Image Text:12.2 Show that the minimum cation-anion radius ratio for a coordination number of 4 is p.225. Anion (4) Cation ( 12.14 The unit cell for MgFe:O: (MgO-Fe:0:) has cubic symmeiry with a unit cell edge length of 0.836 nm. If the density of this material is 4.52 g/cm, compute its atomic packing factor. For this computation, you will need to use ionic radilisted in Table 12.3. 12 44 A three-polnt benaing test Is pertormed on a glass specimen having a rectangular cross section of helght d = 5 mm (0.2 In.) and wiath b = 10 mm (0.4 n.); the alstance between support polnts is 45 mm (1.75 In.). (a) Compute the fexural strength irthe load at fracture is 200 N (65 Ib). (D) The polnt of maximum defection Ay occurs at the center of the specimen and Is described by (1211) where E Is the modulus of elasticity and I Is the cross-sectional moment of Inertla Compute ay at a load of 200 N (00 lb).
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