If zinc chloride weighs 136.28 g/mol, what is its molecular formula? show calculations

We know that Zinc (Zn) has a molar mass of 65.39 g/mol. Hence the remaining is:

136.28 - 65.39=70.89 

While molar mass of Chlorine (Cl) is 35.453 g/mol .

70.89 / 35.453 =2 => Cl 

So the formula is ZnCl2

it's filtration, but this is an assumption so my apologies if i got this

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be