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aterial is 5.22 g/ of 0.062 nm a

aterial is 5.22 g/ of 0.062 nm a

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The unit cell for Cr2O3 has hexagonal symmetry with lattice parameters a = 0.4961 nm and c =1.360 nm. If the density of this material is 5.22 g/cm³, calculate its atomic packing factor. For this computation assume ionic radii of 0.062 nm and 0.140 nm, respectively, for Cr3+ and O2-. (Ac=52 g/mol, Ao=16 g/mol)
Transcribed Image Text:The unit cell for Cr2O3 has hexagonal symmetry with lattice parameters a = 0.4961 nm and c =1.360 nm. If the density of this material is 5.22 g/cm³, calculate its atomic packing factor. For this computation assume ionic radii of 0.062 nm and 0.140 nm, respectively, for Cr3+ and O2-. (Ac=52 g/mol, Ao=16 g/mol)
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