JEE Main Chemistry question
Not in JEE Main or NEET syllabus
The density of KCl is and the length of a side unit cell is determined by X-ray diffraction as Å. The value of Avogadro's number calculated from these data is:
Answer: (A)
Solution
KCl has an fcc (rock-salt) structure with and molar mass g/mol. From , we get .
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