The well known mineral fluorite is chemically calcium fluoride. It is known that in one unit cell
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The well known mineral fluorite is chemically calcium fluoride. It is known that in one unit cell of this mineral there are 4 Ca2+ ions and 8 F– ions and that Ca2+ ions are arranged in a fee 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 5.46 × 10-8 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).
Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-0471720638
3rd Edition
Authors: Richard M. Felder, Ronald W. Rousseau
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