2. ZrC has a rock salt structure (NaCl) which may be considered as two interpenetrating f.c.c. lattices of two types of atoms. Corners and faces of the unit cell are located by C ions, and Zr ions locate at the edges and inside of the unit cell. (radius of Zr is 0.23 nm and radius of C is 0.17 nm) a) Draw ZrC unit cell showing the Zr and Cions and determine number of atoms. b) The atomic weight of Zr is 91.2 g/mole and that of C is 12 g/mole. Calculate the theorical density of ZrC in grams/cm3. c) Calculate the ionic packing factor of ZrC

2. ZrC has a rock salt structure (NaCl) which may be considered as two interpenetrating f.c.c. lattices of two types of atoms. Corners and faces of the unit cell are located by C ions, and Zr ions locate at the edges and inside of the unit cell. (radius of Zr is 0.23 nm and radius of C is 0.17 nm) a) Draw ZrC unit cell showing the Zr and Cions and determine number of atoms. b) The atomic weight of Zr is 91.2 g/mole and that of C is 12 g/mole. Calculate the theorical density of ZrC in grams/cm3. c) Calculate the ionic packing factor of ZrC

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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