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An element crystallises in a f.c.c. latt...

An element crystallises in a f.c.c. lattice with edge length of 400 pm. Calculate the density if 200 g of this element contain `2.5xx10^(24)` atoms.

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To solve the problem of calculating the density of an element that crystallizes in a face-centered cubic (f.c.c.) lattice, we will follow these steps: ### Step 1: Determine the Molar Mass We know that 200 g of the element contains \(2.5 \times 10^{24}\) atoms. To find the mass of a single atom, we can use the following formula: \[ \text{Mass of one atom} = \frac{\text{Total mass}}{\text{Number of atoms}} = \frac{200 \, \text{g}}{2.5 \times 10^{24}} \] ...
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