Metallic iron has a BCC lattice with all atoms at lattice points and a unit cell whose edge length is 2.86×10-4 micrometer.The density of iron is 7.87 kg/L. What is the mass of an iron atom?

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Q: Br NO-

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Q: Name the following isomer H.C CH3 2. 3. H.

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Q: Draw the major product of this reaction. Ignore inorganic byproducts.

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Q: How do you Calculate the percent dissociation for unknown acid? Please give example

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Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.