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Cobalt has a density of 8.85 g/cm3, and the mass of a cobalt atom is 9.79 ✕ 10−26 kg. (a) If the atoms are spherical and tightly packed, what is the volume of a cobalt atom?

Respuesta :

  • Density=8.85g/cm^3
  • Mass=9.79×10^{-26}kg=9.79×10^{-23}g

[tex]\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}[/tex]

[tex]\\ \sf\longmapsto Volume=\dfrac{Mass}{Density}[/tex]

[tex]\\ \sf\longmapsto Volume=\dfrac{9.79\times 10^{-23}}{8.85}[/tex]

[tex]\\ \sf\longmapsto Volume=1.106\times 10^{-23}cm^3[/tex]

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