CsBr crystallizes in a body centredcubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu and Avogadro's number being 6.02times10^(23) mol^(-1), the density of CsBr is

CsBr crystallizes in a body centredcubic lattice. The unit cell length

1.	CsBr crystallizes in a body centredcubic lattice. The unit cell length is 436.6 pm. Given that the atomic mass of Cs = 133 and that of Br = 80 amu and Avogadro's number being 6.02times10^(23) mol^(-1), the density of CsBr is
Answer» `8.25g//cm^(3)` `4.25g//cm^(3)` `0.425g//cm^(3)` `42.5g//cm^(3)` Solution :`d=(ZtimesM)/(a^(3)timesN_(A)times10^(-30))` =`(1times(133+80))/((436.61)^(3)times(6.02times20^(23))times10^(-30))` `4.25 G //cm^(3)` (CSBR CONTAINS, one formula unit per unit CELL)