nbsp-The pyknometric density of sodium chloride crystal is 2-165 x 103 kg m-3 while its X-ray density is 2-178 x 103 kg m-3- The fraction of the unoccupied sites in sodium chloride crytal is-

First density = 2.165 * 103Difference of density = 2178 2165 = 13 kg/m3Therefore,fraction of unoccupied site = 13/2178 = nbsp;5.96 * 10 3 ...

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Question

The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m^-3while its X-ray density is 2.178 x 10³ kg m^-3. The fraction of the unoccupied sites in sodium chloride crytal is?

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2.165 \times 10^{3}

^{- 3}

2.178 \times 10^{3}

^{- 3}

[CBSE PMT 2003]

N a C l

2.165 \times 10^{3} k g m^{- 3}

2.178 \times 10^{3} k g m^{- 3}

N a C l

Sodium chloride crystal has FCC structure. Its density is 2.163 x 10³ kg m^-3. What will be the edge length of the unit cell cube?

= 900 {kg/m}^{3}

= 1030 {kg/m}^{3}

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