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CBSE Class 12-science Answered

The well known mineral fluorite is chemically calcium fluoride. It is know that in one unit cell of this mineral, there are 4 Ca2+ ions and 8 F- ions and that Ca2+ ions are arranged in fcc lattice. The F- ions fill all the tetrahedral holes in the face centred cubic lattice of Ca2+ions. The edge of the unit cell is 5.4610-8 cm in length. The density of the solid is 3.18 g cm-3. Use this information to calculate Avogadro's number (Molar mass of CaF2 = 78.08 g mol-1)
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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Answered by | 04 Jun, 2014, 03:23: PM

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CBSE 12-science - Chemistry
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