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A compound A B has a rock salt structure with A: B=1: 1 . The formula weight of A B is 6.023 Y amu. And the closest distance between A and B is Y^ 1 / 3 ~nm . The observed density of the lattice in kg / m ^3 is :

Correct answer

5

Step-by-step solution

aligned & A=2 y^ 1 / 3 ~nm . M =6.023 y 4 amu & Density = m / a ^3= 6.023 4 1.66 10⁻²⁷ 8 y 10⁻²⁷ ~kg / m ^3 & = 40 8 =5 ~kg / m ^3 aligned

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