Answer:- D) [tex]9.21*10^2^3[/tex] particles [tex]BaCl_2[/tex] .
Solution:- There are 1.53 moles of the compound are given and it asks to calculate the number of particles.
To calculate the number of particles we multiply the moles with Avogadro number.
[tex]1.53mol(\frac{6.022*10^2^3particles}{1mol})[/tex]
= [tex]9.21*10^2^3[/tex]
So, the D is the right choice.
