ZnI_2, can be prepared by the direct combination of elements. A chemist determines from the amounts of elements that 0.0654 mol ZnI_2 can be formed.

ZnI_2, can be prepared by the direct combination of elements. A chemis

1.	ZnI_2, can be prepared by the direct combination of elements. A chemist determines from the amounts of elements that 0.0654 mol ZnI_2 can be formed.
Answer» Solution :The molar mass of `ZnI_2` is 319 g/MOL. (The formula weight is 319 amu, which is OBTAINED by summing the ATOMIC weight in the formula) THUS `0.0654 ` mol `ZnI_2 xx (319g ZnI_2)/(1 "mol " ZnI_2)` `=20.9 "gm "ZnI_2`