Question #227509

Molybdenum forms body-centered cubic crystals and at 20 oC the density is 10.3 g/mL. Calculate the distance between the centers of the nearest molybdenum atoms.

Expert's answer

**Solution**

Density = Z "\\times" "\\frac {M}{N}" "\\times{l^3}"

Z is effective number of atoms for Molybdenum (Mo). = 2 .

M is Molar mass of Mo = 95.95 g/ mol.

N = 6.02 × 10^{23}.

L is edgelength in Cm .

d = 10.3 g / "cm^3."

M = 95.95 g/ mol.

N = "6.02 \u00d7 10^{23}"

Make L subject of the formula

L = 3.16 × 10-8 Cm.

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