In a 10g sample of a hydrate Iron 3 chloride, 6g is anhydrous Iron 3 chloride and 4g is water.

In a 10g sample of a hydrate Iron 3 chloride, 6g is anhydrous Iron 3 chloride and 4g is water.
How do I find the formula and the name of the hydrate?

Thanks!

(6 g FeCl3) / (162.2048 g FeCl3/mol) = 0.037 mol FeCl3

(4 g H2O) / (18.0153 g/mol) = 0.22 mol H2O

(0.22 mol) / ( 0.037 mol) = 6

So the formula is:
FeCl3·6H2O

Which might be called, among other things, "ferric chloride hexahydrate".