What Density ?????

Chemistry Level pending

The pycnometric density of N a C l NaCl crystal is 2.16 gram per cubic centimeter while its X-ray density is 2.18 gram per cubic centimeter. What is the fraction of unoccupied site in the N a C l NaCl crystal ?????

5.6E-3 4.3E-3 8.2E-3 9.3E-3

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1 solution

Gagan Raj
Mar 7, 2015

F r a c t i o n Fraction i s is

S u b s t i t u t i n g Substituting t h e the v a l u e s values w e we g e t get

H e n c e Hence t h e the a n s w e r answer i s is 0.0093 0.0093 .

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