Converting formula units to total mol ions

Question

Convert 2.217(10^20) formula units PbCl₄ to total mol ions.

Answer 1

Hi Estefany,

 

A formula unit is a whole "molecule" of PbCl4. So:

 

2.217 x 10^20 formula units PbCl4 x 5 ions/1 formula unit PbCl4 x 1 mol/6.022 x 10^23 ions = 1.84 x 10^-3 mol ions

 

Hope this helps!

Sarah