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

Question

The pyknometric density of sodium chloride crystal is 2.165 × 103 kg m-3 while its X-ray density is 2.178 × 103 kg m-3. The fraction of unoccupied sites in sodium chloride crystal is (A) 5.96×10-1 (B) 5.96×10-3 (C) 5.96 (D) 5.96×10-2

Tardigrade Admin · Accepted Answer

The fraction of unoccupied site in sodium chloride crystal =(X-ray density - pyknometric density/x-ray density) =(2.178×103-2.165×103/2.178×103)=(0.013×103/2.178×103) =(13/2178)=5.96×10-3

Q. The pyknometric density of sodium chloride crystal is $2.165 \times 1 0^{3} k g m^{- 3}$ while its X-ray density is $2.178 \times 1 0^{3} k g m^{- 3} .$ The fraction of unoccupied sites in sodium chloride crystal is

$5.96 \times 1 0^{- 1}$

$5.96 \times 1 0^{- 3}$

5.96

$5.96 \times 1 0^{- 2}$

Q. The pyknometric density of sodium chloride crystal is 2.165×103kgm−3 while its X-ray density is 2.178×103kgm−3. The fraction of unoccupied sites in sodium chloride crystal is

5.96×10−1

5.96×10−3

5.96

5.96×10−2

The fraction of unoccupied site in sodium chloride crystal =x−raydensityX−raydensity−pyknometricdensity​ =2.178×1032.178×103−2.165×103​=2.178×1030.013×103​ =217813​=5.96×10−3

Q. The pyknometric density of sodium chloride crystal is $2.165 \times 1 0^{3} k g m^{- 3}$ while its X-ray density is $2.178 \times 1 0^{3} k g m^{- 3} .$ The fraction of unoccupied sites in sodium chloride crystal is

$5.96 \times 1 0^{- 1}$

$5.96 \times 1 0^{- 3}$

$5.96 \times 1 0^{- 2}$