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EXERCISE 3-5 A rhombohedral unit cell has \( a=5.00 \AA, \alpha=75.0^{\circ} \). (a) Calculate the ...
EXERCISE 3-5 A rhombohedral unit cell has \( a=5.00 \AA, \alpha=75.0^{\circ} \). (a) Calculate the volume of the rhombohedral cell. (b) Calculate the dimensions of the triply primitive hexagonal cell that may be chosen. (c) Calculate the volume of the hexagonal cell from its dimensions and calculate the ratio of this volume to the volume obtained in (a).