Question

solve this step wise

Answer 1

Hi Dear Doraemon !
______________________________________________________________

Density =$\frac{2 X 213 }{ (436.6X 10^-10)^{3} X6.02 X10^23 }$

             =$\frac{426}{83224499.896 X 10 ^-30 X 6.02 X 10 ^23}$

             =$\frac{426}{501011489.37392X 10 ^-7}$

             = 0.0000008502799018291915 X {10}^7
             = 8.502799018291915 X 10 ^-7 X 10^7
             = 8.502799018291915 ≈ 8.502